Nutrition and Oral Hydration: NCLEX-RN (2023)

In this section of the NCLEX-RN examination, you will be expected to demonstrate your knowledge and skills of nutrition and oral hydration in order to:

  • Assess client ability to eat (e.g., chew, swallow)
  • Assess client for actual/potential specific food and medication interactions
  • Consider client choices regarding meeting nutritional requirements and/or maintaining dietary restrictions, including mention of specific food items
  • Monitor client hydration status (e.g., edema, signs and symptoms of dehydration)
  • Initiate calorie counts for clients
  • Apply knowledge of mathematics to client nutrition (e.g., body mass index [BMI])
  • Manage the client's nutritional intake (e.g., adjust diet, monitor height and weight)
  • Promote the client's independence in eating
  • Provide/maintain special diets based on the client diagnosis/nutritional needs and cultural considerations (e.g., low sodium, high protein, calorie restrictions)
  • Provide nutritional supplements as needed (e.g., high protein drinks)
  • Provide client nutrition through continuous or intermittent tube feedings
  • Evaluate side effects of client tube feedings and intervene, as needed (e.g., diarrhea, dehydration)
  • Evaluate client intake and output and intervene as needed
  • Evaluate the impact of disease/illness on nutritional status of a client

Adequate nutrition consists of the ingestion and utilization of water, essential nutrients, vitamins and minerals to maintain and sustain health and wellness.

A normal diet should consist of all of the food groups including fruits, vegetables, dairy foods, protein and grains according to the United States Department of Agriculture.

Like other basic human needs such as elimination, nutrition can be negatively impacted by a number of factors and forces such as diseases and disorders like anorexia, nausea, vomiting, anorexia, dysphagia and malabsorption, cultural and ethnical beliefs about nutrition and foods, personal preferences, level of development, lifestyle choices, economic restraints, psychological factors and disorders such as eating disorders, medications, and some treatments like radiation therapy and chemotherapy.

Some of the terms and terminology relating to nutrition and hydration that you should be familiar with include those below.

  • Anabolism: Anabolism is one of the three things that occur with protein metabolism. Anabolism occurs when these cells utilize amino acids to build tissue up. The other two mechanisms of protein metabolism are catabolism and a nitrogen balance.
  • Catabolism: Catabolism, which also occurs with protein metabolism, occurs when excessive amino acids are broken down in the tissue and the liver.
  • Nitrogen balance: Nitrogen balance occurs as the result of the client's level of protein nutrition. It reflects protein metabolism and the gains and losses of nitrogen.
  • Basal metabolism rate: The basal metabolism rate reflects the extent to which the body meets the energy demands of the body with the metabolism of food.
  • Body mass index: Body mass index is an indication of how much fat there is in the body. Body mass index is used as a measurement that is useful in determining whether or not the client is overweight and/or retaining fluids or if their body mass index is acceptable for the client's height and weight.
  • Calorie: A calorie is a measure of heat. The number of calories varies among the food groups. For example, there are 9 calories per gram of fat and there are 4 calories per gram of protein and carbohydrates.
  • Complete protein: A complete protein is a protein that consists of all of the essential amino acids in addition to some non-essential ones. Examples of complete proteins include poultry, meats, fish and eggs.
  • Incomplete protein: An incomplete protein is a protein that is without one or more of the essential amino acids. Vegetables of all kinds are considered an incomplete protein.
  • Essential amino acids: Essential amino acids are those amino acids that cannot be made by the body. The nine essential amino acids include tryptophan, valine, methionine, phenylalanine, histidine, leucine, threoline, isoleucine, and lysine.
  • Nonessential amino acids: Nonessential amino acids are those amino acids that can be made by the body. Examples of nonessential amino acids are cystine, glutamic acid, alanine, aspartic acid, proline, serine, hydroxyproline and tyrosine.
  • Dysphagia: Dysphagia is difficulty swallowing. Dysphagia can occur as the result of an anatomical stricture and from other causes, including those that are neurological in nature.
  • Fat soluble vitamins: Fat soluble vitamins are vitamins that cannot be produced by the body and those that can be stored in the body. A client can also overdose on fat soluble vitamins because they can accumulate these kinds of vitamins with this storage. Examples of fat soluble vitamins are vitamins A, D, E and K.
  • Water soluble vitamins: Water soluble vitamins are vitamins that cannot be produced by the body and those that cannot be stored in the body. These vitamins are not stored in the body. Examples of water soluble vitamins are vitamins B and C.

Assessing the Client's Ability to Eat

Adequate nutrition is dependent on the client's ability to eat, chew and swallow.

In addition to a complete assessment of the client's current nutritional status, nurses also collect data that can suggest that the client is, or possibly is, at risk for nutritional deficits. The assessment of the client's nutritional status is done with a number of subjective and objective data that is collected and analyzed. For example, the client is assessed using the A, B, C and Ds of a nutritional assessment in addition to the use of some standardized tools such as the Patient Generated Subjective Global Assessment and the Nutrition Screening Inventory. The A, B, C and Ds of nutritional assessment include:

  • A: Anthropometric Data: This data includes variables such as height, weight, body mass index and arm measurements such as the mid arm circumference and the triceps skin fold.
  • B: Biochemical Data: Laboratory testing data like serum albumin, hemoglobin, urinary creatinine, and serum transferrin.
  • C: Clinical Data: The client's skin condition, level of activity and status of the client's mucous membranes.
  • D: Dietary Data: This data includes the client's subjective reports of their food and fluid intake over the last 24 hours and the types of foods that are typically eating.

Some of the factors that impact on the client's nutrition, their nutritional status and their ability to eat include:

  • Level of health
  • Psychological influences and disorders
  • Ethnicity
  • Culture
  • Personal preferences
  • Religious practices and rituals
  • Gender
  • Level of development
  • Lifestyle choices
  • Personal beliefs about food and food intake
  • Medications
  • Therapeutic treatments
  • Level of health
  • Psychological influences and disorders
  • Economic status
  • Swallowing disorders
  • Chewing disorders
  • Dentition

Swallowing disorders, chewing disorders and poor dentition are factors that can impede the client's mechanical ability to eat. For example, a client with a chewing disorder, such as may occur secondary to damage to the trigeminal nerve which is the cranial nerve that controls the muscle of chewing, may have impaired nutrition in the same manner that these clients are at risk:

  • A client with poor dentition and misfitting dentures
  • A client who does not have the ability to swallow as the result of dysphagia which is a swallowing disorder that sometimes occurs among clients who are adversely affected from a cerebrovascular accident
  • A client with an anatomical stricture that can be present at birth
  • The client with side effects to cancer therapeutic radiation therapy
  • A client with a neurological deficit that affects the client's vagus nerve and/or the hypoglossal cranial nerve which are essential for swallowing and the prevention of dangerous and life threatening aspiration

Clients with a swallowing disorder are often assessed and treated for this disorder with the collaborative efforts of the speech and language therapist, the dietitian, the nurse and other members of the health care team. Clients with poor dentition and missing teeth can be assisted by a dental professional, the nurse and the dietitian in terms of properly fitting dentures and, perhaps, a special diet that includes pureed foods and liquids that are thickened to the consistency of honey so that they can be swallowed safely and without aspiration when the client is adversely affected with a swallowing disorder.

Assessing the Client for Actual/Potential Specific Food and Medication Interactions

Medications have a great impact on the client's nutritional status. Some medications interfere with the digestive process and others interact with some foods.

Some of the medications that impact on the client's nutrition status include thiazide diuretic medications which can decrease the body's ability to absorb vitamin B12 and acetylsalicylic acid which can decrease the amounts of vitamin C, potassium, amino acids, and glucose available to the body because acetylsalicylic acid can lead to the excessive excretion of these substances.

Medications, including over the counter medications, interact with foods, herbs and supplements. Some of these interactions are synergistic and others are antagonistic, that is these interactions can increase and potentiate the effects of the medication(s) and others neutralize and inhibit the therapeutic effects of the medication. For example, clients who are taking an anticoagulant such as warfarin are advised to avoid vegetables that contain vitamin K because vitamin K is the antagonist of warfarin.

Food – drug interactions will be more fully discussed in the "Pharmacological” and “Parenteral Therapies" sections in the subtitled topic "Providing Information to the Client on Common Side Effects/Adverse Effects/Potential Interactions of Medications and Informing the Client When to Notify the Primary Health Care Provider".

(Video) Introduction, Overview of Nutrients - Nutrition Essentials - @LevelUpRN

Considering Client Choices Regarding Meeting Nutritional Requirements and/or Maintaining Dietary Restrictions

As previously mentioned, a number of factors impact on the client, their preferences and their choices in terms of the kinds of foods that they want to eat and in terms of the quantity of food that they want to consume.

Some of these factors, as previously discussed, include gender, cultural practices and preferences, ethnic practices and preferences, spiritual and religious practices and preferences and, simply, personal preferences that have no basis in the client's spiritual, religious, cultural, or gender practices and preferences. The client may simply ask the nurse for a turkey sandwich, something that can be given to the client when it is available and it is not contraindicated according to the client's therapeutic diet.

These client choices and preferences become quite challenging indeed when the client has a dietary restriction. For example, Americans in the southern area of the United States may prefer fried foods like fried chicken instead of a healthier piece of broiled or baked chicken, however, when they are affected with high cholesterol levels, modifications in this diet must be made; similarly, when a member of the Hindu religion is a vegetarian and they lack protein, the diet of this person must also be modified. These modifications must be explored and discussed with the client; alternatives should be offered and discussed and the closer these alternative options are to the client's preferences, the greater the client's adherence to their dietary plan will be. Educating the client and family members about the modified diet and the need for this new diet in terms of the client's health status is also highly important and critical to the success of the client's dietary plan and their improved state of health and wellness.

Monitoring the Client's Hydration Status

Some of the terms and terminology relating to hydration and the client's hydration status that you should be familiar with for your NCLEX-RN examination include these below.

  • Intracellular fluids: Intracellular fluids are those fluids that are within the cells of the body. Most of the bodily fluids, that is about two thirds of the total bodily fluids, are intracellular fluids.
  • Extracellular fluids: Extracellular fluids are those fluids that are found outside of the cells of the body. About one third of the total bodily fluids are extracellular fluids and extracellular fluids include both intravascular fluids which are fluids contained in the vessels of the body and interstitial fluids which are fluids around the cells but neither in the vascular system or within the cells.
  • Electrolytes: Electrolytes are electrically charged salts in the body. Electrolytes consist of both cations and anions.
  • Cations: Cations are electrically charged electrolytes with a positive charge. Examples of cations are sodium, calcium, magnesium and potassium.
  • Anions: Anions are electrically charged electrolytes with a negative charge. Examples of anions include phosphate, bicarbonate, sulfate and chloride.
  • Diffusion: Diffusion is the principle of physics that establishes the fact that molecules will move, or diffuse, from an area that is more concentrated than the area that these molecules move to. Molecules will diffuse from an area of high concentration to an area of low concentration across a semipermeable membrane. Diffusion is a mechanism that attempts to create a balance on both sides of the semipermeable membrane.
  • Osmosis: Osmosis is the principle of physics which states that water will move across the membrane from areas of high concentration to an area of low concentration. Osmosis is similar to diffusion but diffusion is the movement of molecules and osmosis is the movement of water from the area of high concentration to the area of lower concentration.
  • Filtration: Filtration is the principle of physics that states that solutes, in combination with fluids, move across the membrane from areas of high concentration to an area of low concentration.

Fluid imbalances can be broadly categorized a fluid deficits and fluid excesses. Generally speaking fluid balance and fluid imbalances can be impacted by the client's age, body type, gender, some medications like steroids which can increase bodily fluids and diuretics which can deplete bodily fluids, some illnesses such as renal disease and diabetes mellitus, extremes in terms of environmental temperature, an increased bodily temperature, and some life style choices including those in relationship to diet and fluid intake.

The aging population as well as Infants and young children are at greatest risk for fluid imbalances and the results of these imbalances. For example, the elderly is at risk for alterations in terms of fluid imbalances because of some of the normal changes of the aging process and some of the medications that they take when they are affected with a chronic disorder such as heart failure. Some of the normal changes of the aging process that can lead to an imbalance of fluid include the aging person's loss of the thirst which, under normal circumstances, would encourage the client to drink oral fluids, decreased renal function, and the altered responses that they have in terms of fluid and electrolyte imbalances during the aging process

Infants and young children at risk for alterations in terms of fluid imbalances because of their relatively rapid respiratory rate which increases inpercernible fluid losses through the lungs, the child's relatively immature renal system, and a greater sensitivity to fluid losses such as those that occur with vomiting and diarrhea.

Women, in contrast to male clients, are at greater risk for alterations in terms of bodily fluids because they tend to have more fat, which contains less fluid, than muscle which contains more bodily fluid. Lastly, clients who are febrile and clients who are exposed to prolonged hot environmental temperatures will lose bodily fluids as the result of sweating and these unpercernable fluid losses. Sweating is a cooling off response to intrapersonal and extrapersonal hot temperatures.

Fluid Excesses

Fluid excesses, also referred to as hypervolemia, is an excessive amount of fluid and sodium in the body. Fluid excesses are the net result of fluid gains minus fluid losses. When fluid gains, and fluid retention, is greater than fluid losses, fluid excesses occur.

Specific risk factors associated with fluid excesses include poor renal functioning, medications like corticosteroids, Cushing's syndrome, excessive sodium intake, heart failure, hepatic failure and excessive oral and/or intravenous fluids. Fluid excesses are characterized with unintended and sudden gain in terms of the client's weight, adventitious breath sounds such as crackles, tachycardia, bulging neck veins, occasional confusion, hypertension, an increase in terms of the client's central venous pressure and edema.

Edema is an abnormal collection of excessive fluids in the interstitial and/or intravascular spaces. Edema is a sign of fluid excesses because edema occurs as the result of increases in terms of capillary permeability, decreases in terms of the osmotic pressure of the serum and increased capillary pressure. In combination, these forces push fluids into the interstitial spaces.

Edema is most often identified in the dependent extremities such as the feet and the legs; however, it can also become obvious with unusual abdominal distention and swelling. Nurses assess edema in terms of its location and severity.

Pitting edema is assessed and classified as:

  • 1+ Pitting Edema: The edematous area is depressed or indented 1 cm or less
  • 2+ Pitting Edema: The edematous area is depressed or indented 2 cm or less
  • 3+ Pitting Edema: The edematous area is depressed or indented 3 cm or less
  • 4+ Pitting Edema: The edematous area is depressed or indented 4 cm or less
  • 5+ Pitting Edema: The edematous area is depressed or indented 5 cm or less

Some professional literature classifies pitting edema on a scale of 1+ to 4+ with:

  • 1+ Pitting Edema: The edematous area is hardly detectable
  • 2+ Pitting Edema: The edematous area is depressed or indented 2 cm to 4 cm
  • 3+ Pitting Edema: The edematous area is depressed or indented 5 cm to 7 cm
  • 4+ Pitting Edema: The edematous area is depressed or indented > 7 cm

Fluid Deficits

Dehydration occurs when fluid loses are greater than fluid gains. Fluid losses occur as the result of vomiting, diarrhea, a high temperature, the presence of ketoacidosis, diuretic medications and other causes.

The signs and symptoms of mild to moderate dehydration include, among others, orthostatic hypotension, dizziness, constipation, headache, thirst, dry skin, dry mouth and oral membranes, and decreased urinary output. The signs and symptoms of severe dehydration include, among others, oliguria, anuria, renal failure, hypotension, tachycardia, tachypnea, sunken eyes, poor skin turgor, confusion, fluid and electrolyte imbalances, fever, delirium, confusion, and unconsciousness.

(Video) Practice & Skills: Enteral and Parenteral Nutrition - Fundamentals of Nursing | @LevelUpRN

Significant fluid losses can result from diarrhea, vomiting and nasogastric suctioning; and abnormal losses of electrolytes and fluid and retention can result from medications, such as diuretics or corticosteroids. Clients at risk for inadequate fluid intake include those who are confused and unable to communicate their needs.

Dehydration occurs when one loses more fluid than is taken in. Fluid losses occur with normal bodily functions like urination, defecation, and perspiration and with abnormal physiological functions such as vomiting and diarrhea.

Initiating Calorie Counts for Clients

Many people on a weight reduction diet or a diet to increase their weight are based on calories counts. The number of calories per gram of protein is 4 calories, the number of calories per gram of fat is 9 calories and the number of calories per gram of carbohydrates is 4 calories.

Clients can be instructed to count calories by weighing the food that will be eaten and then multiply this weight in grams by the number of calories per gram. For example, if the client will be eating a 14 grams of plain tuna fish, the number of calories can be calculated by multiplying 14 by 4 which would be 56 calories. Similarly, a client who will be eating 100 grams of a carbohydrate could calculate the number of calories by multiplying 100 by 4 which is 400 calories.

The method above is quite cumbersome because it entails weighing the food and then calculating the number of calories. A simpler method is to read food labels. For example, if a package of frozen food like chicken nuggets states that there are 2500 calories per package and there are 3 servings in each package, each serving will have about 833 calories when a person eats 1/3 of the package of chicken nuggets.

Applying a Knowledge of Mathematics to the Client's Nutrition

Similar to the calculation of calories, as above, mathematics is also used to calculate other indicators about the client's nutritional status. For example, the client's body mass index (BMI) and the "ideal" bodily weight can be calculated using relatively simple mathematics.

The body mass index is calculated using the client's bodily weight in kg and the height of the client in terms of meters. The mathematical rule for calculating the client's BMI is:

BMI = kg of body weight divided by height in meters squared

So, the BMI for a client weighing 75 kg who is 1.72 meters tall is calculated as follows:

BMI = 75 kg / 2.96 = 28.8 BMI

The ideal body weight is calculated using the client's height, weight and body frame size as classified as small, medium and large. The mathematical rule for calculating this ideal weight for males and females of small, medium and large body build are:

  • Ideal body weight for females with a medium body build = 100 pounds per 5 feet of height + 5 pounds for every inch over 5 feet tall for females with a medium body build
  • Ideal body weight for females with a small body build = 100 pounds per 5 feet of height + 5 pounds for every inch over 5 feet tall – 10% of the client's weight for females with a small body build
  • Ideal body weight for females with a large body build = 100 pounds per 5 feet of height + 5 pounds for every inch over 5 feet tall + 10% of the client's weight for females with a large body build
  • Ideal body weight for males with a medium body build = 106 pounds per 5 feet of height + 6 pounds for every inch over 5 feet tall for males with a medium body build
  • Ideal body weight for males with a small body build = 106 pounds per 5 feet of height + 6 pounds for every inch over 5 feet tall – 10% of the client's weight for males with a small body build
  • Ideal body weight for males with a large body build = 106 pounds per 5 feet of height + 6 pounds for every inch over 5 feet tall + 10% of the client's weight for males with a large body build

Managing the Client's Nutritional Intake

Some clients need management in terms of weight reduction and others may need the assistance of the nurse and other health care providers, such as a registered dietitian, in order to gain weight. All clients, however, must have a balanced and healthy diet with all of the food groups. Fad diets and drastic weight reduction diets are not a successful way to lose and maintain a healthy weight; learning new eating habits is a successful plan for losing and maintaining a lower and healthier body weight for those clients who are overweight.

Although more clients should reduce their weight, there are some clients that have to be encouraged to gain weight. This is often the case when a client is recovering from a physical disease and disorder, particularly when this disease or disorder is accompanied with nausea, vomiting, and/or anorexia. These clients should have attractive and preferred food preferences and, at times, they may need dietary supplements and medications to stimulate their appetite.

In addition to planning a diet with the client to increase or decrease their body weight, the client's weight and body mass index should be monitored on a regular basis. The calculations for both of these variables were discussed above. In addition to these calculations, the nurse must also be knowledgeable about what is and what is not a good body mass index or BMI.

According to the U.S. Department of Health and Human Services, a body mass index of:

  • < 18.5 is considered underweight
  • 18.5 to 24.9 is considered a normal body weight
  • 25 to 29.9 is considered overweight
  • 30 to 39.9 is considered obese
  • 40 is considered extremely obese

Promoting the Client's Independence in Eating

As with all activities of daily living, nurses and other members of the health care team must promote and facilitate the client's highest degree of independence that is possible in terms of their eating, as based on the client, their abilities and their weaknesses.

(Video) Fluid and Electrolytes for Nursing Students - Comprehensive NCLEX Review

Some of the assistive devices that can be used to accommodate for clients' weaknesses and to promote their independent eating include items like weighted plates, scoop dishes, food guards around the plate, assistive utensils, weighted and tip proof drinking glasses and cups.

Providing and Maintaining Special Diets Based on the Client's Diagnosis/Nutritional Needs and Cultural Considerations

There are a number of therapeutic special diets that are for clients as based on their health care problem and diagnosis. All diets, including these special diets, must be modified according to the client's cultural preferences, religious beliefs and personal preferences to the greatest extent possible.

These special diets, some of the indications for them, and the components of each are discussed below.

Clear Fluid Diet

  • Indications: Post-operative diet, prior to some diagnostic tests like a colonoscopy, bowel rest and during acute illness
  • Components: Clear fluids including clear broth, juices like apple juice, water, tea, ginger ale, clear Italian ice, and Jell-O

Full Fluid Diet

  • Indications: Advancement from a clear diet post operatively, and for clients with gastrointestinal disorders like gastritis
  • Components: All clear fluids in addition to vegetable juice, milk, all fruit juices, yogurt and pudding

Soft Bland Low Fiber Low Residue Diet

  • Indications: Advancement from a full fluids diet, problems with chewing and gastrointestinal disorders
  • Components: Soft foods except those with fiber like fruits and vegetables

Mechanical Soft Diet

  • Indications: Poor dentition, swallowing disorders, intestinal tract strictures and post operatively after face or neck surgery
  • Components: Ground meats, mashed potatoes, clear and full fluids, and soft vegetables and fruits

Low Sodium Diet

  • Indications: Renal, cardiac and liver disease
  • Components: All foods with the exception of frozen and canned foods, cold cuts, smoked meats like bacon and sausage

Low Cholesterol Diet

  • Indications: Cardiac disease
  • Components: All food that are low in cholesterol; limited in terms of fats and meats

High Fiber Diet

  • Indications: Constipation and other gastrointestinal disorders
  • Components: High fiber foods like fruits, vegetables and whole grains

Dysphagia Diet

  • Indications: Swallowing disorders
  • Components: Honey consistency thickened fluids and easy to swallow ground and pureed foods

High Protein Diet

  • Indications: Cachexia, wasting and during renal dialysis
  • Components: Meats, eggs, fish and dairy products in addition to protein supplements

Diabetic Diet

  • Indications: Diabetes
  • Components: Carbohydrate restrictions

Calorie Restricted Diet

  • Indications: Weight reduction
  • Components: A balance diet without sugars and low in terms of carbohydrates

Providing Nutritional Supplements as Needed

Many clients have orders for dietary supplements including high protein drinks like Boost and Ensure. These drinks come in a variety of flavors including chocolate, vanilla and strawberry. The doctor's order for these nutritional supplements states the name of the specific nutritional supplement and the number of cans per day. Clients must be encouraged to drink these supplements as ordered and the client's flavor preference should also be considered and provided to the client whenever possible.

Providing Client Nutrition Through Continuous or Intermittent Tube Feedings

Enteral nutrition is given to clients when, for one reason or another, the client is not getting sufficient calories and/or nutrients with oral meals and eating. Enteral nutrition is most often used among clients who are affected with a gastrointestinal disorder, a chewing and/or swallowing disorder, or another illness or disorder such as inflammatory bowel disorder, a severe burn and anorexia as often occurs as the result of an acute illness, chemotherapy and radiation therapy. Enteral nutrition can be given on a continuous basis, on an intermittent basis, as a bolus, and also as supplementation in addition to oral feedings when the client is not getting enough oral feedings. Enteral feedings can consist of commercially prepared formulas that vary in terms of their calories, fat content, osmolality, carbohydrates and protein as well as given with regular pureed foods.

Enteral tube feedings are delivered with a number of different tubes such as a nasointestinal tube that goes to the intestine through the nose, a nasogastric tube which is placed in the stomach through the nose, a nasojejunal tube that enters the jejunum of the small intestine through the nose, a nasoduodenal tube that enters the duodenum through the nose, a jejunostomy tube that is surgically placed directly into the jejunum of the small intestine, a gastrostomy tube that is surgically placed into the stomach directly and a percutaneous endoscopic gastrostomy (PEG) tube. Naso tubes, like the nasogastric and nasoduodenal tubes, are the preferred tube because their placement is noninvasive, however, naso tubes are contraindicated when the client has a poor gag reflex and when they have a swallowing disorder because any reflux can lead to aspiration. Clients receiving these feedings should be placed in a 30 degree upright position to prevent aspiration at all times during continuous tube feedings and at this same angle for at least one hour after an intermittent tube feeding.

In addition to aspiration, some of the other complications associated with tube feedings include tube leakage, diarrhea, dehydration, nausea, vomiting, inadvertent improper placement or tube dislodgment, nasal irritation when a naso tube is used and infection at the insertion site when an ostomy tube is used for the enteral nutrition. At times, abdominal cramping and diarrhea can be prevented by slowing down the rate of the feeding. The doctor is notified when the residual volume is excessive and when the tube is not patent or properly placed.

Continuous tube feedings are typically given throughout the course of the 24 hour day. A pump, similar in terms to an intravenous infusion pump, controls the rate of the tube feeding infusion at the ordered rate. The residual volume of these feedings is aspirated, measured and recorded at least every 6 hours and the tube is flushed every 4 hours to maintain its patency.

Intermittent tube feedings are typically given every 4 to 6 hours, as ordered, and the volume of each of these intermittent feedings typically ranges from 200 to 300 mLs of the formula that is given over a brief period of time for up to one hour. The residual volume of these feedings is aspirated, measured and recorded prior to each feeding and the tube is flushed before and after each intermittent feeding with about 30 mLs of water and before and after each medication administration to insure and maintain its patency.

Bolus enteral feedings are given using a large syringe and they are typically given up to 6 times a day over the course of about 15 minutes. The volume of bolus enteral feedings is usually about 200 to 400 mLs but not over 500 mLs per feeding. Bolus tube feedings are associated with dumping syndrome which is a complication of these feedings.

Tube placement is determined by aspirating the residual and checking the pH of the aspirate and also with a radiography, and/or by auscultating the epigastric area with the stethoscope to hear air sounds when about 30 mLs of air are injected into the feeding tube. A pH > 6 indicates that the tube is improperly placed in the respiratory tract rather than the gastrointestinal tract.

In addition to measuring the client's intake and output, the nurse monitors the client for any complications, checks the incisional site relating to any signs and symptoms of irritation or infection for internally placed tubes, secures the tube to prevent inadvertent dislodgement or malpositioning, cleans the nostril and tube using a benzoin swab stick, applies a water soluble jelly just inside the nostril to prevent dryness and soreness, provides frequent mouth care, and replaces the securing tape as often as necessary.

Evaluating the Side Effects of Client Tube Feedings and Intervening, as Needed

Some of the side effects and complications associated with tube feedings, their prevention and their interventions are discussed below.


  • Prevention: Maintaining the head of the bed up at 30 degrees
  • Interventions: Emergency suctioning, placing the client on their side and addressing any respiratory distress


  • Prevention: Maintaining a slow rate of infusion whenever possible, changing the ordered rate and formula when necessary
  • Interventions: Slowing the rate down, changing the formula and medications to stop the diarrhea

Abdominal Pain

  • Prevention: Maintaining a slow rate of infusion whenever possible, changing the ordered rate and formula when necessary
  • Interventions: Slowing the rate down, changing the formula and analgesics as indicated


  • Prevention: Monitor the client for any signs and symptoms of dehydration, measure intake and output and notify the doctor of any abnormalities
  • Interventions: Provide any ordered oral and/or intravenous fluids

Nausea and Vomiting

  • Prevention: Maintaining a slow rate of infusion whenever possible, changing the ordered rate and formula when necessary
  • Interventions: Slowing the rate down, changing the formula and antiemetic medications to stop the vomiting and to prevent any aspiration

Tube Dislodgment

  • Prevention: Secure and monitor the tube
  • Interventions: Notify the doctor and discontinue the tube feeding

Evaluating the Client's Intake and Output and Intervening As Needed

Intake includes all foods and fluids that are consumed by the client with oral eating, intravenous fluids, and tube feedings; output is the elimination of food and fluids from the body. Some measurable outputs are urinary elimination, residual that is aspirated when the client is getting a tube feeding, wound drainage, ostomy output, and vomitus. Some outputs that are not measurable include respiratory vapors that are exhaled during the respiratory cycle and fluid losses from sweating.

Solid intake is monitored and measured in terms of ounces; liquid intake is monitored and measured in terms of mLs or ccs. Solid output is measured in terms of the number of bowel movements per day; liquid stools and diarrhea are measured in terms of mLs or ccs. Urinary output is monitored and measured in terms of mLs or ccs for toilet trained children and adults, and, in terms of diaper weights or diaper counts for neonates and infants. Emesis is monitored and measured in terms of mLs or ccs. A urinary output of less than 30 mLs or ccs per hour is considered abnormal.

(Video) NCLEX Practice for Nutrition Part 1

Indirect evidence of intake and output, which includes losses that are not measurable, can be determined with the patient's vital signs, the signs and symptoms of fluid excesses and fluid deficits, weight gain and losses that occur in the short term, laboratory blood values and other signs and symptoms such as poor skin turgor, sunken eyeballs and orthostatic hypotension.

Evaluating the Impact of Diseases and Illnesses on the Nutritional Status of a Client

Virtually all acute and chronic illnesses, diseases, and disorders impact on the nutritional status of a client. For example, clients who are affected with cancer may have an impaired nutritional status as the result of anorexia related to the disease process and as the result therapeutic chemotherapy and/or radiation therapy; other clients can have an acute or permanent neurological deficit that impairs their nutritional status because they are not able to chew and/or safely swallow foods and still more may have had surgery to their face and neck, including a laryngectomy for example, or a mechanical fixation of a fractured jaw, all of which place the client at risk for nutritional status deficiencies.

The relative severity of these nutritional status deficits must be assessed and all appropriate interventions must be incorporated into the client's plan of care, in collaboration with the client, family members, the dietitian and other members of the health care team.


  • Assistive Devices
  • Elimination
  • Mobility/Immobility
  • Non Pharmacological Comfort Interventions
  • Nutrition and Oral Hydration (Currently here)
  • Personal Hygiene
  • Rest and Sleep


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Alene Burke, RN, MSN

Alene Burke RN, MSN is a nationally recognized nursing educator. She began her work career as an elementary school teacher in New York City and later attended Queensborough Community College for her associate degree in nursing. She worked as a registered nurse in the critical care area of a local community hospital and, at this time, she was committed to become a nursing educator. She got her bachelor’s of science in nursing with Excelsior College, a part of the New York State University and immediately upon graduation she began graduate school at Adelphi University on Long Island, New York. She graduated Summa Cum Laude from Adelphi with a double masters degree in both Nursing Education and Nursing Administration and immediately began the PhD in nursing coursework at the same university. She has authored hundreds of courses for healthcare professionals including nurses, she serves as a nurse consultant for healthcare facilities and private corporations, she is also an approved provider of continuing education for nurses and other disciplines and has also served as a member of the American Nurses Association’s task force on competency and education for the nursing team members.

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    What is the nurses role in nutrition and hydration? ›

    Nursing staff must:

    understand how ageing affects nutritional needs. understand how illness and medication affect appetite and nutritional needs. become food aware, meals are just as important as medication. assess patients for signs or risk of malnourishment in health and social care settings and in the community.

    Is nutrition on Nclex? ›

    In this section of the NCLEX-RN examination, you will be expected to demonstrate your knowledge and skills of nutrition and oral hydration in order to: Assess client ability to eat (e.g., chew, swallow)

    How can you promote good nutrition and hydration in healthcare? ›

    Here are some tips:
    • Offer plenty of food choice. None of us want to eat the same food, day in day out. ...
    • Balanced meals. ...
    • Supervise meal times. ...
    • Care plans. ...
    • Monitor weights. ...
    • Offer supplements. ...
    • Dehydration – the risk factors. ...
    • Signs of dehydration.
    Aug 23, 2018

    What is the relationship between hydration and nutrition? ›

    In humans, food and fluid intake are closely linked, because food intake affects the water balance of the body, the hydration status. Metabolic end products obligatory to urinary excretion increase renal fluid losses, and fluid losses are replaced by fluid intake from foods and beverages.

    What is the basic concept of nutrition and hydration? ›

    Nutrition and hydration are the intake of food and fluid to meet dietary and biological needs. Good nutrition is fundamental to wellbeing.

    How do I remember nutrition for NCLEX? ›

    Hope this helps!
    1. CARBOHYDRATES (My Favorite Game is Volleyball) ...
    2. CHOLESTEROL (A Sedentary Lifestyle Ends) ...
    3. SATURATED FATS (LasVegas Bars Beats Hollywood) ...
    4. POLYUNSATURATED FATS - plant oils (corn, safflower, sunflower)
    5. PROTEINS (Proteins BuilD Fearless Men)
    Mar 14, 2012

    Can you pass NCLEX-RN without studying? ›

    It's possible to pass the NCLEX without studying, but It's unlikely. To pass without studying would require you to be either naturally smart or having done a good job studying and retaining information learned in nursing school. Most students will not pass the NCLEX if they don't study for it.

    What are 5 tips to healthy hydration? ›

    To make sure you are staying hydrated and keeping your heart happy, follow these five tips recommended by the AHA.
    • Drink the right amount for you. ...
    • Keep a water bottle with you throughout the day. ...
    • Set an alarm or reminder to drink water throughout your day. ...
    • Monitor caffeine and alcohol intake. ...
    • Add flavor.
    Apr 13, 2017

    What is the most important nutrient for hydration? ›

    Water is an essential nutrient at every age, so optimal hydration is a key component for good health. Water accounts for about 60% of an adult's body weight.

    How can nutrition and hydration be monitored? ›

    If you have concerns about a resident's fluid intake, then it's important that you monitor the input and output via a fluid balance chart. Not only will this indicate how much fluid is being drunk in a 24-hour period, but you can also monitor any other urinary problems.

    What is the hardest nursing class in nursing school? ›

    Pharmacology. Pharmacology, or the study of medication, can seem scary because of the sheer scope of the course. "It becomes one of the hardest classes for nursing students due to the depth and amount of knowledge needed," says Megan Lynch, RN and instructor at Pima Community College.

    What are the basics nutrition in nursing? ›

    Nurses promote healthy nutrition to prevent disease, assist patients to recover from illness and surgery, and teach patients how to optimally manage chronic illness with healthy food choices. Healthy nutrition helps to prevent obesity and chronic diseases, such as diabetes mellitus and cardiovascular disease.

    Is nutrition for nursing hard? ›

    Although nutrition class is generally easy for the majority of nursing students, you should be wary of going into this class thoughtlessly.

    What are the 7 factors that affect nutrition and hydration? ›

    • Factors Which Affect Food Intake. Good nutrition can help keep the body healthy. ...
    • Physical Factors. Muscle mass tends to decrease with age. ...
    • Social Factors. Loss of social contact is a problem for many older adults. ...
    • Emotional Factors. ...
    • Medication Factors. ...
    • Money Factors.

    What are the signs of poor nutrition and hydration? ›

    • Nutrition and Hydration – Spotting the signs of poor nutrition. Obvious weight loss.
    • • Losing weight unintentionally. ...
    • • Diarrhoea, nausea, vomiting or. ...
    • • Loss of appetite: eating less than usual or. ...
    • • Drinking less than usual. ...
    • • Changes in mood: becoming depressed and. ...
    • • Collar bone sticks out. ...
    • • Tooth loss and decay.

    What is the difference between hydrate and hydration? ›

    Hydrolysis and hydration are two different terms students often confuse. The main difference between hydrolysis and hydration is that hydrolysis includes the split of a water molecule whereas hydration does not always include the split of a water molecule.

    What are the 4 basics of nutrition? ›

    Updated every five years by the US Department of Health and Human Services and the USDA, the report found many Americans are lacking in four vital nutrients: calcium, potassium, dietary fiber, and vitamin D.

    What are the 5 key nutrition concepts? ›

    There are five key factors that make up a healthful diet: (1) An adequate diet, (2) A balanced diet, (3) Calorie control, (4) Moderation, and (5) Variety. Nutritional scientists discover the health effects of food and its nutrients by first making an observation.

    Why is nutrition and hydration important? ›

    Proper nutrition and hydration can help prevent chronic diseases, maintain cognitive function, and manage chronic diseases effectively. Therefore, it is essential to educate and support older adults in making healthy dietary choices to help them age well and maintain their quality of life.

    How do I pass the NCLEX-RN exam for the first time? ›

    How to Pass the NCLEX-RN: 7 Key Tips
    1. Know The NCLEX Content. ...
    2. Make A Study Plan. ...
    3. Familiarize Yourself with Question Types. ...
    4. Remember to Use the Nursing Process. ...
    5. Utilize Maslow's Hierarchy of Needs. ...
    6. Rest the Day Before the NCLEX Exam. ...
    7. Be Early and Stay Calm on the Day of Your NCLEX Exam.
    Mar 17, 2023

    How do I answer NCLEX questions better? ›

    8 Steps of NCLEX Question Analysis
    1. Read the whole question. ...
    2. Ask yourself first. ...
    3. Think about the types. ...
    4. Focus on each question answer. ...
    5. Decide if the answers are wrong, right, and possible. ...
    6. Rank your correct and possible options. ...
    7. Reread the question after choosing “finalists” ...
    8. Make a decision and don't look back.
    May 3, 2022

    How do I pass the RN NCLEX after failing? ›

    1. Acknowledge the fact that you were unsuccessful. ...
    2. Find out the NCLEX retake policy for your state. ...
    3. Consider talking with your former nursing instructor. ...
    4. Understand why you failed NCLEX the first time. ...
    5. Familiarize yourself with the NCLEX content areas.

    What is the definition of nutrition for nurses? ›

    (noo-TRIH-shun) The taking in and use of food and other nourishing material by the body. Nutrition is a 3-part process. First, food or drink is consumed. Second, the body breaks down the food or drink into nutrients.

    What can nurses do in malnutrition? ›

    Nurses play an important role in the nutritional screening of all patients, successfully identifying those who are malnourished or those who are at risk of developing malnutrition.

    What can RN do to make money? ›

    Make more money as a nurse with higher education
    • Earn an advanced degree. ...
    • Get certified in a specialization. ...
    • Consider a leadership role. ...
    • Become a travel nurse. ...
    • Become a private duty nurse. ...
    • Become an immunization nurse. ...
    • Become an instructor. ...
    • Become a nurse health coach.
    Jun 16, 2022

    Is 75 questions on NCLEX good? ›

    Yes, you can pass the NCLEX-RN by answering only 75 questions. Keep in mind, the number of questions you answer may be a sign you passed, but it is not a definite sign. If your questions got progressively more challenging until the test stopped, this is one of the good signs you passed NCLEX in 2023.

    Is the NCLEX the hardest test? ›

    The National Council Licensure Examination, or NCLEX, is a critical exam that every nursing student must take to become a licensed nurse. Passing the NCLEX is essential to begin your nursing career, but it is also one of the most challenging exams you will ever take.

    How many times can you fail the RN NCLEX? ›

    If they fail, they'll need to wait 45 days before retesting. After failing three times, though, they'll need to complete a board-approved remediation program before the next retake. test-takers have six attempts to pass in total.

    What is the 3 drink rule one for hydration? ›

    According to Pelton and the thousands of users who have set their own videos to her voice, the balance of these three drinks is crucial: One for fun, one for energy, one for hydration.

    What are the 4 goals of hydration? ›

    Drinking enough water each day is crucial for many reasons: to regulate body temperature, keep joints lubricated, prevent infections, deliver nutrients to cells, and keep organs functioning properly.

    What hydrates better than water? ›

    Milk is more hydrating than water

    For example, milk was found to be even more hydrating than plain water because it contains the sugar lactose, some protein and some fat, all of which help to slow the emptying of fluid from the stomach and keep hydration happening over a longer period.

    What is the number one drink for hydration? ›

    Water is your best bet for everyday hydration, since it is free of sugar, calories, and caffeine. All of your daily food and beverages contribute to your daily fluid needs.

    What foods hydrate you quickly? ›

    So eat up, and beat the heat with your fork.
    • Cucumbers. Hydrate and replenish your skin with fresh cucumbers. ...
    • Celery. This fibrous veggie will satisfy your craving for crunch. ...
    • Zucchini. Watch for fresh, in-season zucchini this summer. ...
    • Watermelon. No surprise here — “water” is in the name, after all. ...
    • Strawberries. ...
    • Cauliflower.
    Dec 30, 2020

    How do you assess hydration status in nursing? ›

    Changes in body weight, haematological and urine parameters, bioelectrical impedance, skinfold thickness, heart rate and blood pressure changes are among these indices. Plasma osmolality, urine osmolality and urine specific gravity are the most widely used markers of hydration.

    What are two ways to monitor hydration? ›

    One of the easiest ways to test your hydration is through bathroom frequency and urine color. Your urine should be light yellow and you should be emptying your bladder on average 5-8 times per day. Another way to determine hydration levels (especially after a run) is a sweat test.

    How does a nurse monitor nutritional status? ›

    The assessment of a patient's nutritional status should include a general observation of the person, looking for signs of malnutrition, such as the appearance of hair and skin. In a malnourished person hair is likely to be dull, brittle and dry, and there may be signs of hair loss.

    What is the role of nurses in nutrition? ›

    Nurses promote healthy nutrition to prevent disease, assist patients to recover from illness and surgery, and teach patients how to optimally manage chronic illness with healthy food choices. Healthy nutrition helps to prevent obesity and chronic diseases, such as diabetes mellitus and cardiovascular disease.

    What are the roles of a nurse in the nutrition team? ›

    The SC Nurse is responsible for nutrition rehabilitation of the admitted children through treatment of medical complications of Severe Acute Malnutrition and prevention of further deterioration of the nutrition situation through provision of therapeutic feeds, routine and specialized medicines, health and nutrition ...

    What is the role of the nurse related to patient nutrition quizlet? ›

    The nurse's role is to the patient is to observe food consumption, monitor patient's ability to eat food, monitor dietary habits, teach good dietary habits and help with any needs of the patient such as opening the food products.

    What can a nurse do for dehydration? ›

    Nursing Interventions for Fluid Volume Deficit
    • Encourage/remind patient of the need for oral intake. ...
    • Administer intravenous hydration if needed. ...
    • Educate patient and family on possible causes of dehydration. ...
    • Administer electrolyte replacements as needed/as ordered.
    Nov 21, 2021

    What are 3 reasons why nutrition is important? ›

    A healthy diet throughout life promotes healthy pregnancy outcomes, supports normal growth, development and ageing, helps to maintain a healthy body weight, and reduces the risk of chronic disease leading to overall health and well-being.

    What is the role of nutrition in clinical practice? ›

    Clinical nutrition is concerned with the diagnosis and treatment of diseases that affect the intake, absorption, and metabolism of dietary constituents and with the promotion of health through the prevention of diet related diseases.

    What best describes the role of the nurse on the nutrition support team quizlet? ›

    A nurse's role in managing clients with nutritional deficiencies involves assisting the clients in learning about the importance of nutritious food. Essential nutrients provide energy, build and repair tissues, and regulate body processes. The nurse is reviewing nutrients and their functions with a client.

    What is the nurses responsibility in malnutrition? ›

    Management of malnutrition will vary depending on the type of malnutrition and the existing health conditions that caused the malnutrition. Nurses play an important role in the nutritional screening of all patients, successfully identifying those who are malnourished or those who are at risk of developing malnutrition.

    What are the seven nursing roles? ›

    It also includes seven nursing roles: Stranger role, Resource role, Teaching role, Counseling role, Surrogate role, Active leadership, and Technical expert role.

    Is the nurse's role in nutrition is to call the dietitian? ›

    true or false the nurses role in nutrition is to call the dietitian? false (hospitals and health care facilities are free to decide what criteria they will use to identify risk for malnutrition and what defines risk.)

    What is the role of nurse in nutrition in pregnancy? ›

    Nurses, who play a vital role in promoting maternal nutrition are considered the backbone of maternity services. Hence, it is crucial for them to have adequate knowledge regarding the promotion of maternal nutrition to be able to provide effective nutritional services to women during pregnancy (Saronga et al.

    Who is the person most responsible for nutrition care in a clinical setting? ›

    The clinical dietitian is the person responsible for nutrition care in the clinical setting. The nurse, physician, and patient all work with the dietitian to create a successful plan of care.

    What are the roles and responsibilities of a nurse in the nursing care management of the older people elderly? ›

    Their primary responsibility is to help the elderly maintain their quality of life by administering medications, developing treatment plans, and monitoring vital signs. They also collaborate with other healthcare professionals to implement care plans and provide information and resources about patients.

    What are three nursing interventions to address dehydration? ›

    Nursing interventions are crucial in managing hypovolemia and dehydration by restoring fluid balance, preventing complications, and promoting health, and may include monitoring vital signs, administering fluids, and managing underlying conditions.

    What are 3 ways to treat dehydration? ›

    The best way to treat dehydration is to rehydrate the body by drinking plenty of fluids, such as water, diluted squash or diluted fruit juice. A sweet drink can help to replace lost sugar, and a salty snack can help to replace lost salt.

    What is the priority intervention for dehydration? ›

    Use 1 part sports drink to 1 part water. Most adults with mild to moderate dehydration from diarrhea, vomiting or fever can improve their condition by drinking more water or other liquids. Diarrhea may be worsened by full-strength fruit juice and soft drinks.


    (Nurse Cheung)
    2. Water Soluble Vitamins: B-complex vitamins, vitamin C - Nutrition Essentials for Nursing
    (Level Up RN)
    3. Intake and Output Nursing Calculation Practice Problems NCLEX Review (CNA, LPN, RN) I and O
    4. Nutrition Therapy Overview: Specialty Diets, Administration Methods & Benefits | Lecturio Nursing
    (Lecturio Nursing)
    (Beautiful Nursing)


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