CLINICAL PRACTICE EXAM • 2026/2027
D440
HESI-Style Nutrition
Practice Exam
200-Question Comprehensive Test
Clinical application of nutrition foundations, macronutrients, micronutrients, lifespan needs,
therapeutic diets, assessment, laboratory values, food safety, nutrition support, and priority nursing
judgment.
200 A-D 200
Practice Questions Multiple Choice Immediate Explanations
Original study and revision material • Clinical application • Clean print-ready format
, D440 HESI-Style Nutrition Practice Exam
200 original clinical-application questions with the answer and explanation immediately after every question.
Instructions: Select the best answer for each question. The correct answer and detailed explanation appear
immediately after every item. Questions are original and emphasize nutrition science, therapeutic application, laboratory
interpretation, patient education, safety, and nursing clinical judgment.
Foundations, Energy & Digestion
1 A client asks which nutrient provides the most energy per gram. Which response is
correct?
A Water provides 4 kcal per gram
B Fat provides 9 kcal per gram
C Protein provides 12 kcal per gram
D Carbohydrate provides 9 kcal per gram
Answer: B. Fat provides 9 kcal per gram
Explanation: Fat is the most energy-dense macronutrient at 9 kcal/g. Carbohydrate and protein each
provide about 4 kcal/g, while water provides no energy.
2 Which nutrient is the body's preferred immediate fuel for many tissues during
ordinary activity?
A Carbohydrate
B Calcium
C Water
D Vitamin C
Answer: A. Carbohydrate
Explanation: Carbohydrate is readily converted to glucose and is a major fuel source. The brain and red
blood cells depend heavily on glucose under typical conditions.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 2
, 3 A client with poor intake is losing muscle mass. Which macronutrient is most directly
needed to support tissue repair and preserve lean body mass?
A Protein
B Sodium
C Vitamin K
D Alcohol
Answer: A. Protein
Explanation: Protein supplies amino acids used to build and repair tissues, synthesize enzymes and
hormones, and support immune function.
4 Which substance does not provide calories but is essential for transport, temperature
regulation, and chemical reactions?
A Saturated fat
B Water
C Starch
D Protein
Answer: B. Water
Explanation: Water does not provide energy, but it is essential for circulation, temperature control,
digestion, excretion, and many metabolic reactions.
5 A food label lists 10 g protein, 20 g carbohydrate, and 5 g fat. Approximately how
many calories does the food provide?
A 95 kcal
B 140 kcal
C 165 kcal
D 220 kcal
Answer: C. 165 kcal
Explanation: Protein contributes 40 kcal, carbohydrate 80 kcal, and fat 45 kcal. The total is about 165 kcal.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 3
, 6 Which organ produces bile that assists with fat digestion?
A Liver
B Colon
C Stomach
D Pancreas
Answer: A. Liver
Explanation: The liver produces bile. Bile is stored and concentrated in the gallbladder and helps emulsify
fat so digestive enzymes can work more effectively.
7 Which pancreatic enzyme is primarily responsible for digesting dietary fat?
A Pepsin
B Amylase
C Lipase
D Lactase
Answer: C. Lipase
Explanation: Pancreatic lipase breaks triglycerides into smaller components that can be absorbed.
Amylase digests starch, while pepsin is a gastric protease.
8 A client has had extensive disease of the terminal ileum. Which nutrient deficiency
deserves particular attention?
A Vitamin K only from diet
B Vitamin B12
C Sodium
D Vitamin C
Answer: B. Vitamin B12
Explanation: Vitamin B12 bound to intrinsic factor is absorbed mainly in the terminal ileum. Disease or
resection in this area can impair absorption and eventually cause deficiency.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 4
D440
HESI-Style Nutrition
Practice Exam
200-Question Comprehensive Test
Clinical application of nutrition foundations, macronutrients, micronutrients, lifespan needs,
therapeutic diets, assessment, laboratory values, food safety, nutrition support, and priority nursing
judgment.
200 A-D 200
Practice Questions Multiple Choice Immediate Explanations
Original study and revision material • Clinical application • Clean print-ready format
, D440 HESI-Style Nutrition Practice Exam
200 original clinical-application questions with the answer and explanation immediately after every question.
Instructions: Select the best answer for each question. The correct answer and detailed explanation appear
immediately after every item. Questions are original and emphasize nutrition science, therapeutic application, laboratory
interpretation, patient education, safety, and nursing clinical judgment.
Foundations, Energy & Digestion
1 A client asks which nutrient provides the most energy per gram. Which response is
correct?
A Water provides 4 kcal per gram
B Fat provides 9 kcal per gram
C Protein provides 12 kcal per gram
D Carbohydrate provides 9 kcal per gram
Answer: B. Fat provides 9 kcal per gram
Explanation: Fat is the most energy-dense macronutrient at 9 kcal/g. Carbohydrate and protein each
provide about 4 kcal/g, while water provides no energy.
2 Which nutrient is the body's preferred immediate fuel for many tissues during
ordinary activity?
A Carbohydrate
B Calcium
C Water
D Vitamin C
Answer: A. Carbohydrate
Explanation: Carbohydrate is readily converted to glucose and is a major fuel source. The brain and red
blood cells depend heavily on glucose under typical conditions.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 2
, 3 A client with poor intake is losing muscle mass. Which macronutrient is most directly
needed to support tissue repair and preserve lean body mass?
A Protein
B Sodium
C Vitamin K
D Alcohol
Answer: A. Protein
Explanation: Protein supplies amino acids used to build and repair tissues, synthesize enzymes and
hormones, and support immune function.
4 Which substance does not provide calories but is essential for transport, temperature
regulation, and chemical reactions?
A Saturated fat
B Water
C Starch
D Protein
Answer: B. Water
Explanation: Water does not provide energy, but it is essential for circulation, temperature control,
digestion, excretion, and many metabolic reactions.
5 A food label lists 10 g protein, 20 g carbohydrate, and 5 g fat. Approximately how
many calories does the food provide?
A 95 kcal
B 140 kcal
C 165 kcal
D 220 kcal
Answer: C. 165 kcal
Explanation: Protein contributes 40 kcal, carbohydrate 80 kcal, and fat 45 kcal. The total is about 165 kcal.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 3
, 6 Which organ produces bile that assists with fat digestion?
A Liver
B Colon
C Stomach
D Pancreas
Answer: A. Liver
Explanation: The liver produces bile. Bile is stored and concentrated in the gallbladder and helps emulsify
fat so digestive enzymes can work more effectively.
7 Which pancreatic enzyme is primarily responsible for digesting dietary fat?
A Pepsin
B Amylase
C Lipase
D Lactase
Answer: C. Lipase
Explanation: Pancreatic lipase breaks triglycerides into smaller components that can be absorbed.
Amylase digests starch, while pepsin is a gastric protease.
8 A client has had extensive disease of the terminal ileum. Which nutrient deficiency
deserves particular attention?
A Vitamin K only from diet
B Vitamin B12
C Sodium
D Vitamin C
Answer: B. Vitamin B12
Explanation: Vitamin B12 bound to intrinsic factor is absorbed mainly in the terminal ileum. Disease or
resection in this area can impair absorption and eventually cause deficiency.
D440 • HESI-Style Nutrition Practice Exam • 200 Questions Page 4
