HESI Nutrition Actual Exam Nursing Nutrition
Assessment 2026/2027 – Complete Exam-Style
Questions with Detailed Rationales | 100%
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[Basic Nutrition Principles & Nutrient Functions]
Q1: A nurse is teaching a client about the primary function of carbohydrates in the diet. Which of
the following statements best describes the role of carbohydrates?
A. They are essential for building and repairing muscle tissue.
B. They serve as the body's main source of energy. [CORRECT]
C. They facilitate the absorption of fat-soluble vitamins.
D. They are primarily responsible for regulating fluid balance.
Correct Answer: B
Rationale: The best answer is that carbohydrates serve as the body's main source of energy.
While other macronutrients have vital functions, carbohydrates are broken down into glucose,
which is the preferred fuel source for the brain and muscles.
Q2: When explaining complete proteins to a client, the nurse identifies which of the following
foods as a source of high-quality, complete protein containing all essential amino acids?
A. White rice
B. Black beans
C. Eggs [CORRECT]
D. Almonds
Correct Answer: C
Rationale: This choice is correct because animal products like eggs, meat, and dairy are complete
proteins, meaning they contain all nine essential amino acids that the body cannot synthesize on
its own.
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Q3: A client asks the nurse about the difference between saturated and unsaturated fats. Which
statement is accurate regarding saturated fats?
A. They are liquid at room temperature and derived primarily from plant sources.
B. They can help lower LDL cholesterol levels when consumed in moderation.
C. They are solid at room temperature and are associated with an increased risk of heart disease.
[CORRECT]
D. They include omega-3 fatty acids, which are essential for brain health.
Correct Answer: C
Rationale: This matches nutrition standards because saturated fats, found in animal products and
tropical oils, are typically solid at room temperature and are known to raise LDL cholesterol,
contributing to cardiovascular risk.
Q4: The nurse is educating a client on the importance of water intake. Which of the following is
a primary function of water in the human body?
A. Providing the structural component for cell membranes
B. Acting as a medium for chemical reactions and temperature regulation [CORRECT]
C. Serving as the primary energy source for high-intensity exercise
D. Storing fat-soluble vitamins for future use
Correct Answer: B
Rationale: The best answer is that water acts as a solvent and medium for chemical reactions,
aids in temperature regulation through sweating, and transports nutrients and waste products.
Q5: A client is concerned about night blindness. The nurse recognizes that a deficiency in which
fat-soluble vitamin is most likely responsible for this condition?
A. Vitamin D
B. Vitamin E
C. Vitamin A [CORRECT]
D. Vitamin K
Correct Answer: C
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Rationale: This choice is correct because Vitamin A is essential for maintaining healthy vision,
particularly in low-light conditions. A deficiency can lead to night blindness and xerophthalmia.
Q6: The nurse is reviewing a client's medication list and notes they are taking a supplement for
bone health. Which vitamin works synergistically with calcium to improve its absorption and
bone mineralization?
A. Vitamin C
B. Vitamin D [CORRECT]
C. Vitamin B12
D. Vitamin K
Correct Answer: B
Rationale: This aligns with nutrition science because Vitamin D enhances the absorption of
calcium and phosphorus in the intestine, which is critical for maintaining strong bones and
preventing osteoporosis.
Q7: A client with a history of cardiovascular disease asks about antioxidant supplements. Which
vitamin is known for its antioxidant properties that help protect cell membranes from damage?
A. Vitamin E [CORRECT]
B. Vitamin B6
C. Vitamin K
D. Vitamin D
Correct Answer: A
Rationale: The best answer is Vitamin E, which is a potent antioxidant that protects cell
membranes from oxidative stress caused by free radicals, potentially reducing the risk of chronic
diseases.
Q8: A client is taking warfarin (Coumadin) and asks about dietary sources of Vitamin K. The
nurse explains that which food is high in Vitamin K and should be consumed consistently?
A. Oranges
B. Spinach [CORRECT]
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C. Milk
D. Carrots
Correct Answer: B
Rationale: This choice is correct because leafy green vegetables like spinach are rich in Vitamin
K, which plays a vital role in blood clotting. Consistency in intake is key for clients on warfarin
to avoid fluctuating INR levels.
Q9: Which of the following foods should the nurse recommend to a client with scurvy to
increase their intake of Vitamin C?
A. Chicken breast
B. Whole grain bread
C. Red bell peppers [CORRECT]
D. Cheddar cheese
Correct Answer: C
Rationale: This matches nutritional guidelines because red bell peppers and citrus fruits are
excellent sources of Vitamin C. A deficiency in this water-soluble vitamin leads to scurvy,
characterized by bleeding gums and poor wound healing.
Q10: A client with peripheral neuropathy may have a deficiency in which B vitamin?
A. Vitamin B1 (Thiamine) [CORRECT]
B. Vitamin B2 (Riboflavin)
C. Vitamin B5 (Pantothenic acid)
D. Vitamin B7 (Biotin)
Correct Answer: A
Rationale: The best answer is Thiamine (B1). A deficiency in Thiamine causes beriberi and
Wernicke-Korsakoff syndrome, often presenting with peripheral neuropathy and confusion,
particularly in clients with alcohol use disorder.
Q11: A client presents with "pellagra," characterized by the three Ds: diarrhea, dermatitis, and
dementia. Which nutrient deficiency is the cause?