RN HESI Nutrition Exit Exam 2026/2027 | HESI RN Nutrition Study
Guide & Practice Test | HESI Nutrition Exit Exam Version 1 & 2 Prep |
NGN-Style Nutrition Questions, Clinical Judgment & Detailed
Rationales | Therapeutic Diets, Vitamins & Minerals, Enteral &
Parenteral Nutrition, Diabetes, Renal, Cardiac, GI & Nutrition Across
the Lifespan
Question 1: A client asks the nurse about the primary role of carbohydrates in
the body. Which statement by the client indicates correct understanding?
A. "Carbohydrates are primarily used to build antibodies."
B. "Carbohydrates are the body's main source of energy."
C. "Carbohydrates are needed primarily for blood clotting."
D. "Carbohydrates are stored mainly as structural proteins."
E. "Carbohydrates are only needed during periods of starvation."
CORRECT ANSWER: B. "Carbohydrates are the body's main source of energy."
Rationale: Carbohydrates serve as the body's preferred and most readily available
energy source, providing approximately 4 kcal per gram. Glucose derived from
carbohydrates is particularly critical for the brain and red blood cells. While
proteins contribute to structure and immune function, carbohydrates are the
primary fuel for cellular metabolism.
Question 2: Which macronutrient provides the greatest number of calories per
gram?
A. Carbohydrate
B. Protein
C. Fat
D. Water
E. Alcohol
CORRECT ANSWER: C. Fat
Rationale: Fat provides approximately 9 kcal per gram, more than twice the
energy provided by carbohydrates and proteins, which each yield approximately 4
kcal per gram. Water provides no calories. Because fat is energy-dense, excessive
intake can significantly contribute to total caloric intake and weight gain.
,Question 3: A client asks the nurse why dietary fiber is important. Which
response is most appropriate?
A. "Fiber is rapidly converted into glucose for energy."
B. "Fiber helps promote normal bowel function."
C. "Fiber provides large amounts of complete protein."
D. "Fiber prevents all gastrointestinal disorders."
E. "Fiber is the primary source of fat-soluble vitamins."
CORRECT ANSWER: B. "Fiber helps promote normal bowel function."
Rationale: Dietary fiber adds bulk to stool and helps promote regular bowel
movements. Adequate fiber intake may also support cardiovascular and
metabolic health. Fiber is not rapidly converted to glucose, does not serve as a
complete protein source, and cannot prevent all gastrointestinal disorders.
Question 4: Which food is the best source of complete protein?
A. White rice
B. Peanut butter
C. Eggs
D. Almonds
E. Lentils
CORRECT ANSWER: C. Eggs
Rationale: Eggs contain all nine essential amino acids in adequate proportions and
are therefore considered a complete protein. Most animal-based proteins are
complete proteins. Plant proteins may be incomplete individually, although
combining complementary plant proteins can provide all essential amino acids.
Question 5: A nurse is assessing a client for dehydration. Which finding is most
concerning?
A. Moist mucous membranes
B. Clear urine
C. Poor skin turgor
D. Increased urine output
E. Daily weight unchanged
,CORRECT ANSWER: C. Poor skin turgor
Rationale: Poor skin turgor indicates fluid volume deficit, particularly when
accompanied by dry mucous membranes, concentrated urine, thirst, tachycardia,
or hypotension. Moist mucous membranes and clear urine generally suggest
adequate hydration. Increased urine output can contribute to dehydration but is
not itself the most direct physical finding listed.
Question 6: Which vitamin is essential for calcium absorption and bone health?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
E. Vitamin B12
CORRECT ANSWER: C. Vitamin D
Rationale: Vitamin D promotes intestinal absorption of calcium and phosphorus
and plays an important role in maintaining healthy bones. Vitamin A supports
vision and epithelial tissues, vitamin C is important for collagen synthesis and
antioxidant defense, and vitamin K is essential for blood clotting.
Question 7: A nurse is teaching a client about the role of protein in wound
healing. Which statement indicates correct understanding?
A. "Protein is only needed for energy production."
B. "Protein provides the building blocks for tissue repair."
C. "Protein prevents infection by directly killing bacteria."
D. "Protein is not involved in wound healing."
E. "Protein primarily stores vitamins."
CORRECT ANSWER: B. "Protein provides the building blocks for tissue repair."
Rationale: Protein is essential for tissue repair and wound healing, providing
amino acids necessary for collagen synthesis, immune function, and cellular
regeneration. Protein is not a primary energy source, does not directly kill
bacteria, and does not store vitamins.
, Question 8: A client with chronic kidney disease asks which food to limit due to
potassium restrictions. Which food should the nurse advise limiting?
A. Apples
B. Bananas
C. White bread
D. Green beans
E. Pasta
CORRECT ANSWER: B. Bananas
Rationale: Bananas are high in potassium and should be limited in clients with
chronic kidney disease who require potassium restriction. Apples, white bread,
green beans, and pasta are lower in potassium and generally safer choices for
these clients.
Question 9: Which laboratory value is most useful for evaluating short-term
nutritional changes in a critically ill patient?
A. Albumin
B. Prealbumin
C. Hemoglobin
D. Transferrin
E. Total lymphocyte count
CORRECT ANSWER: B. Prealbumin
Rationale: Prealbumin has a short half-life of approximately 2 to 3 days, making it
a sensitive indicator of short-term nutritional changes. Albumin has a longer half-
life of approximately 20 days and is a better marker for chronic nutritional status.
Hemoglobin reflects iron status, and transferrin has an intermediate half-life.
Question 10: A nurse is reviewing a total parenteral nutrition (TPN) order.
Which intervention is critical to prevent infection?
A. Change the central line dressing every 12 hours.
B. Use a dedicated lumen for TPN only.
C. Warm the TPN solution in a microwave before infusion.
D. Add vitamins immediately to the lipid emulsion.
E. Infuse TPN via a peripheral IV site.
Guide & Practice Test | HESI Nutrition Exit Exam Version 1 & 2 Prep |
NGN-Style Nutrition Questions, Clinical Judgment & Detailed
Rationales | Therapeutic Diets, Vitamins & Minerals, Enteral &
Parenteral Nutrition, Diabetes, Renal, Cardiac, GI & Nutrition Across
the Lifespan
Question 1: A client asks the nurse about the primary role of carbohydrates in
the body. Which statement by the client indicates correct understanding?
A. "Carbohydrates are primarily used to build antibodies."
B. "Carbohydrates are the body's main source of energy."
C. "Carbohydrates are needed primarily for blood clotting."
D. "Carbohydrates are stored mainly as structural proteins."
E. "Carbohydrates are only needed during periods of starvation."
CORRECT ANSWER: B. "Carbohydrates are the body's main source of energy."
Rationale: Carbohydrates serve as the body's preferred and most readily available
energy source, providing approximately 4 kcal per gram. Glucose derived from
carbohydrates is particularly critical for the brain and red blood cells. While
proteins contribute to structure and immune function, carbohydrates are the
primary fuel for cellular metabolism.
Question 2: Which macronutrient provides the greatest number of calories per
gram?
A. Carbohydrate
B. Protein
C. Fat
D. Water
E. Alcohol
CORRECT ANSWER: C. Fat
Rationale: Fat provides approximately 9 kcal per gram, more than twice the
energy provided by carbohydrates and proteins, which each yield approximately 4
kcal per gram. Water provides no calories. Because fat is energy-dense, excessive
intake can significantly contribute to total caloric intake and weight gain.
,Question 3: A client asks the nurse why dietary fiber is important. Which
response is most appropriate?
A. "Fiber is rapidly converted into glucose for energy."
B. "Fiber helps promote normal bowel function."
C. "Fiber provides large amounts of complete protein."
D. "Fiber prevents all gastrointestinal disorders."
E. "Fiber is the primary source of fat-soluble vitamins."
CORRECT ANSWER: B. "Fiber helps promote normal bowel function."
Rationale: Dietary fiber adds bulk to stool and helps promote regular bowel
movements. Adequate fiber intake may also support cardiovascular and
metabolic health. Fiber is not rapidly converted to glucose, does not serve as a
complete protein source, and cannot prevent all gastrointestinal disorders.
Question 4: Which food is the best source of complete protein?
A. White rice
B. Peanut butter
C. Eggs
D. Almonds
E. Lentils
CORRECT ANSWER: C. Eggs
Rationale: Eggs contain all nine essential amino acids in adequate proportions and
are therefore considered a complete protein. Most animal-based proteins are
complete proteins. Plant proteins may be incomplete individually, although
combining complementary plant proteins can provide all essential amino acids.
Question 5: A nurse is assessing a client for dehydration. Which finding is most
concerning?
A. Moist mucous membranes
B. Clear urine
C. Poor skin turgor
D. Increased urine output
E. Daily weight unchanged
,CORRECT ANSWER: C. Poor skin turgor
Rationale: Poor skin turgor indicates fluid volume deficit, particularly when
accompanied by dry mucous membranes, concentrated urine, thirst, tachycardia,
or hypotension. Moist mucous membranes and clear urine generally suggest
adequate hydration. Increased urine output can contribute to dehydration but is
not itself the most direct physical finding listed.
Question 6: Which vitamin is essential for calcium absorption and bone health?
A. Vitamin A
B. Vitamin C
C. Vitamin D
D. Vitamin K
E. Vitamin B12
CORRECT ANSWER: C. Vitamin D
Rationale: Vitamin D promotes intestinal absorption of calcium and phosphorus
and plays an important role in maintaining healthy bones. Vitamin A supports
vision and epithelial tissues, vitamin C is important for collagen synthesis and
antioxidant defense, and vitamin K is essential for blood clotting.
Question 7: A nurse is teaching a client about the role of protein in wound
healing. Which statement indicates correct understanding?
A. "Protein is only needed for energy production."
B. "Protein provides the building blocks for tissue repair."
C. "Protein prevents infection by directly killing bacteria."
D. "Protein is not involved in wound healing."
E. "Protein primarily stores vitamins."
CORRECT ANSWER: B. "Protein provides the building blocks for tissue repair."
Rationale: Protein is essential for tissue repair and wound healing, providing
amino acids necessary for collagen synthesis, immune function, and cellular
regeneration. Protein is not a primary energy source, does not directly kill
bacteria, and does not store vitamins.
, Question 8: A client with chronic kidney disease asks which food to limit due to
potassium restrictions. Which food should the nurse advise limiting?
A. Apples
B. Bananas
C. White bread
D. Green beans
E. Pasta
CORRECT ANSWER: B. Bananas
Rationale: Bananas are high in potassium and should be limited in clients with
chronic kidney disease who require potassium restriction. Apples, white bread,
green beans, and pasta are lower in potassium and generally safer choices for
these clients.
Question 9: Which laboratory value is most useful for evaluating short-term
nutritional changes in a critically ill patient?
A. Albumin
B. Prealbumin
C. Hemoglobin
D. Transferrin
E. Total lymphocyte count
CORRECT ANSWER: B. Prealbumin
Rationale: Prealbumin has a short half-life of approximately 2 to 3 days, making it
a sensitive indicator of short-term nutritional changes. Albumin has a longer half-
life of approximately 20 days and is a better marker for chronic nutritional status.
Hemoglobin reflects iron status, and transferrin has an intermediate half-life.
Question 10: A nurse is reviewing a total parenteral nutrition (TPN) order.
Which intervention is critical to prevent infection?
A. Change the central line dressing every 12 hours.
B. Use a dedicated lumen for TPN only.
C. Warm the TPN solution in a microwave before infusion.
D. Add vitamins immediately to the lipid emulsion.
E. Infuse TPN via a peripheral IV site.
