WGU D440 HESI Nutrition Objective Assessment Exam Prep … 2026 Update • Verified Answers
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
WGU D440 HESI Nutrition Objective Assessment
Exam Prep 2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,WGU D440 HESI Nutrition Objective Assessment Exam Prep … 2026 Update • Verified Answers
Questions & Verified Answers
1. Which of the following macronutrients provides 9 kilocalories per gram?
A. Fats
B. Proteins
C. Carbohydrates
D. Alcohol
Answer: A
Rationale: Fats are the most energy-dense macronutrient, providing 9 kcal/g, whereas carbohydrates and
proteins provide 4 kcal/g. Applying this knowledge in clinical settings supports safe, evidence-based practice
and improves patient outcomes. This is an important clinical concept because selecting the correct answer (A)
requires understanding both the pathophysiology and the practical nursing implications.
2. A patient with a BMI of 28.5 kg/m² would be classified into which weight category?
A. Underweight
B. Normal weight
C. Overweight
D. Obese
Answer: C
Rationale: BMI ranges are: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-. Exam questions often
test the ability to distinguish this concept from closely related distractors, making a clear rationale essential for
mastery. Applying this knowledge in clinical settings supports safe, evidence-based practice and improves
patient outcomes.
3. Which vitamin is essential for the absorption of calcium in the small intestine?
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: B
Rationale: Vitamin D functions as a hormone that increases the intestinal absorption of calcium and
phosphorus. Exam questions often test the ability to distinguish this concept from closely related distractors,
making a clear rationale essential for mastery. Applying this knowledge in clinical settings supports safe,
evidence-based practice and improves patient outcomes.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, WGU D440 HESI Nutrition Objective Assessment Exam Prep … 2026 Update • Verified Answers
4. To prevent neural tube defects, women of childbearing age are encouraged to consume
adequate amounts of:
A. Iron
B. Vitamin B12
C. Folic acid
D. Vitamin C
Answer: C
Rationale: Folic acid (Vitamin B9) is crucial during early pregnancy to prevent neural tube defects like spina
bifida. Exam questions often test the ability to distinguish this concept from closely related distractors, making a
clear rationale essential for mastery. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes.
5. A nurse is teaching a patient about complete proteins. Which of the following is an example
of a complete protein source?
A. Lentils
B. Soybeans
C. Whole grain bread
D. Peanut butter
Answer: B
Rationale: Complete proteins contain all essential amino acids. While most plant sources are incomplete, soy
and animal products are complete. This is an important clinical concept because selecting the correct answer
(B) requires understanding both the pathophysiology and the practical nursing implications. Recognizing this
principle allows the nurse to prioritize care, anticipate complications, and provide accurate patient education.
6. What is the primary site for nutrient absorption in the human body?
A. Stomach
B. Small Intestine
C. Large Intestine
D. Esophagus
Answer: B
Rationale: The small intestine, specifically the jejunum and ileum, is where the majority of nutrient absorption
occurs due to its large surface area. Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
✓ VERIFIED • 2026 UPDATE • 100% ACCURATE
WGU D440 HESI Nutrition Objective Assessment
Exam Prep 2026 UPDATE
Actual Exam Questions & Verified Answers
with Detailed Rationales
Document Type: Exam (Elaborations)
Academic Year:
Total Questions: 50 Multiple Choice
Includes: Correct Answers + Full Rationales
Status: Verified & Updated for 2026
Exam (Elaborations) • Actual Questions & Rationales Page 1
,WGU D440 HESI Nutrition Objective Assessment Exam Prep … 2026 Update • Verified Answers
Questions & Verified Answers
1. Which of the following macronutrients provides 9 kilocalories per gram?
A. Fats
B. Proteins
C. Carbohydrates
D. Alcohol
Answer: A
Rationale: Fats are the most energy-dense macronutrient, providing 9 kcal/g, whereas carbohydrates and
proteins provide 4 kcal/g. Applying this knowledge in clinical settings supports safe, evidence-based practice
and improves patient outcomes. This is an important clinical concept because selecting the correct answer (A)
requires understanding both the pathophysiology and the practical nursing implications.
2. A patient with a BMI of 28.5 kg/m² would be classified into which weight category?
A. Underweight
B. Normal weight
C. Overweight
D. Obese
Answer: C
Rationale: BMI ranges are: Underweight (<18.5), Normal (18.5-24.9), Overweight (25-. Exam questions often
test the ability to distinguish this concept from closely related distractors, making a clear rationale essential for
mastery. Applying this knowledge in clinical settings supports safe, evidence-based practice and improves
patient outcomes.
3. Which vitamin is essential for the absorption of calcium in the small intestine?
A. Vitamin A
B. Vitamin D
C. Vitamin E
D. Vitamin K
Answer: B
Rationale: Vitamin D functions as a hormone that increases the intestinal absorption of calcium and
phosphorus. Exam questions often test the ability to distinguish this concept from closely related distractors,
making a clear rationale essential for mastery. Applying this knowledge in clinical settings supports safe,
evidence-based practice and improves patient outcomes.
Exam (Elaborations) • Actual Questions & Rationales Page 2
, WGU D440 HESI Nutrition Objective Assessment Exam Prep … 2026 Update • Verified Answers
4. To prevent neural tube defects, women of childbearing age are encouraged to consume
adequate amounts of:
A. Iron
B. Vitamin B12
C. Folic acid
D. Vitamin C
Answer: C
Rationale: Folic acid (Vitamin B9) is crucial during early pregnancy to prevent neural tube defects like spina
bifida. Exam questions often test the ability to distinguish this concept from closely related distractors, making a
clear rationale essential for mastery. Applying this knowledge in clinical settings supports safe, evidence-based
practice and improves patient outcomes.
5. A nurse is teaching a patient about complete proteins. Which of the following is an example
of a complete protein source?
A. Lentils
B. Soybeans
C. Whole grain bread
D. Peanut butter
Answer: B
Rationale: Complete proteins contain all essential amino acids. While most plant sources are incomplete, soy
and animal products are complete. This is an important clinical concept because selecting the correct answer
(B) requires understanding both the pathophysiology and the practical nursing implications. Recognizing this
principle allows the nurse to prioritize care, anticipate complications, and provide accurate patient education.
6. What is the primary site for nutrient absorption in the human body?
A. Stomach
B. Small Intestine
C. Large Intestine
D. Esophagus
Answer: B
Rationale: The small intestine, specifically the jejunum and ileum, is where the majority of nutrient absorption
occurs due to its large surface area. Recognizing this principle allows the nurse to prioritize care, anticipate
complications, and provide accurate patient education. Exam questions often test the ability to distinguish this
concept from closely related distractors, making a clear rationale essential for mastery.
Exam (Elaborations) • Actual Questions & Rationales Page 3
