WGU D440 Nutrition OA Exam – 3 Practice Exams (2026) | Guarantee
Pass
1. Which macronutrient provides the most energy per gram?
A) Protein (4 kcal/g)
B) Carbohydrate (4 kcal/g)
C) Fat (9 kcal/g)
D) Alcohol (7 kcal/g)
Answer C: Fat (9 kcal/g)
Rationale: Fat provides 9 kilocalories per gram, more than double the
energy of carbohydrates and proteins. Alcohol is not considered an
essential nutrient.
,2. What is the Acceptable Macronutrient Distribution Range
(AMDR) for carbohydrates?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-20%
Answer C: 45-65%
Rationale: The AMDR for carbohydrates is 45-65% of total daily
calories. Carbohydrates serve as the body's primary energy source.
3. What is the AMDR for fats?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-15%
Answer B: 20-35%
Rationale: The AMDR for fats is 20-35% of total daily calories. Lipids
serve functions including long-term energy storage, insulation, and
hormone production.
,4. A nurse is educating a client about complete proteins. Which food
source contains all nine essential amino acids?
A) Lentils
B) Eggs
C) Brown rice
D) Peanut butter
Answer B: Eggs
Rationale: Animal products such as eggs, meat, poultry, fish, and
dairy are complete proteins. Most plant proteins are incomplete,
lacking one or more essential amino acids.
5. Which vitamin deficiency is associated with night blindness?
A) Vitamin A
B) Vitamin B1
C) Vitamin C
D) Vitamin D
Answer A: Vitamin A
Rationale: Vitamin A is essential for the synthesis of rhodopsin, a
pigment in the retina needed for vision in dim light.
, 6. Which diet is most appropriate for a patient with hypertension?
A) Low protein diet
B) DASH diet
C) High fat diet
D) Low carbohydrate diet
Answer B: DASH diet
Rationale: The DASH (Dietary Approaches to Stop Hypertension) diet
is specifically designed to lower blood pressure through reduced
sodium and increased potassium, calcium, and fiber intake.
7. The body stores excess glucose in the form of:
A) Glycogen
B) Ketones
C) Cholesterol
D) Calcium
Answer A: Glycogen
Rationale: The body stores excess glucose as glycogen, which is
stored in the liver and muscles for later use when energy is needed.
Pass
1. Which macronutrient provides the most energy per gram?
A) Protein (4 kcal/g)
B) Carbohydrate (4 kcal/g)
C) Fat (9 kcal/g)
D) Alcohol (7 kcal/g)
Answer C: Fat (9 kcal/g)
Rationale: Fat provides 9 kilocalories per gram, more than double the
energy of carbohydrates and proteins. Alcohol is not considered an
essential nutrient.
,2. What is the Acceptable Macronutrient Distribution Range
(AMDR) for carbohydrates?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-20%
Answer C: 45-65%
Rationale: The AMDR for carbohydrates is 45-65% of total daily
calories. Carbohydrates serve as the body's primary energy source.
3. What is the AMDR for fats?
A) 10-35%
B) 20-35%
C) 45-65%
D) 5-15%
Answer B: 20-35%
Rationale: The AMDR for fats is 20-35% of total daily calories. Lipids
serve functions including long-term energy storage, insulation, and
hormone production.
,4. A nurse is educating a client about complete proteins. Which food
source contains all nine essential amino acids?
A) Lentils
B) Eggs
C) Brown rice
D) Peanut butter
Answer B: Eggs
Rationale: Animal products such as eggs, meat, poultry, fish, and
dairy are complete proteins. Most plant proteins are incomplete,
lacking one or more essential amino acids.
5. Which vitamin deficiency is associated with night blindness?
A) Vitamin A
B) Vitamin B1
C) Vitamin C
D) Vitamin D
Answer A: Vitamin A
Rationale: Vitamin A is essential for the synthesis of rhodopsin, a
pigment in the retina needed for vision in dim light.
, 6. Which diet is most appropriate for a patient with hypertension?
A) Low protein diet
B) DASH diet
C) High fat diet
D) Low carbohydrate diet
Answer B: DASH diet
Rationale: The DASH (Dietary Approaches to Stop Hypertension) diet
is specifically designed to lower blood pressure through reduced
sodium and increased potassium, calcium, and fiber intake.
7. The body stores excess glucose in the form of:
A) Glycogen
B) Ketones
C) Cholesterol
D) Calcium
Answer A: Glycogen
Rationale: The body stores excess glucose as glycogen, which is
stored in the liver and muscles for later use when energy is needed.
