WGU Nutrition D440 Exam 2025: Essential
Topics & Study Hacks
1. Based on the Acceptable Macronutrient Distribution Range, what is the
recommendation for carbohydrate intake?
30%-40%
less than 10%
45%-65%
15%-25%
greater than 70%
2. If a person has a deficiency in bile salts, what impact would this have on
the absorption of dietary fats?
Reduced absorption of dietary fats
Increased absorption of carbohydrates
Enhanced protein digestion
Improved absorption of vitamins
3. Describe the role of hydrochloric acid (HCl) in protein
digestion. HCl emulsifies fats for digestion.
HCl breaks down carbohydrates into simple sugars.
HCl activates pepsinogen to pepsin, which begins protein
digestion.
HCl neutralizes stomach acid to protect the intestines.
4. Approximately what percent of hemoglobin saturation would you
observe in the blood after it passed through muscle tissues undergoing
exercise and producing high levels of CO2? Use the figure for
reference.
, 62%
37%
81%
70%
5. The graph also illustrates:
the demand for food is more inelastic than that for fat
the peak output for fat is greater than that for
food
the demand for fat is more inelastic than that for food
,the peak output for food is greater than that for fat
, 6. This graph indicates that _________
low-fat milk has less vitamin D per calorie than sweetened iced
tea
low-fat milk contains more calcium per calorie than sweetened
iced tea
sweetened iced tea is a poor source of calcium
sweetened iced tea is more nutrient dense than milk
7. A patient newly diagnosed with hypothyroidism is prescribed
Levothyroxine (Synthroid) 0.25 mg PO daily. After 6 weeks of treatment,
the nurse determines that the medication was effective if the:
TSH level is 2
Total T4 level is 2 mcg/dL
8. What are the three main types of energy-yielding nutrients?
Vitamins, minerals, water
Amino acids, fatty acids, glucose
Carbohydrates, fats, proteins
Fiber, sugars, starches
9. To estimate REE in normal weight and obese individuals, use:
Topics & Study Hacks
1. Based on the Acceptable Macronutrient Distribution Range, what is the
recommendation for carbohydrate intake?
30%-40%
less than 10%
45%-65%
15%-25%
greater than 70%
2. If a person has a deficiency in bile salts, what impact would this have on
the absorption of dietary fats?
Reduced absorption of dietary fats
Increased absorption of carbohydrates
Enhanced protein digestion
Improved absorption of vitamins
3. Describe the role of hydrochloric acid (HCl) in protein
digestion. HCl emulsifies fats for digestion.
HCl breaks down carbohydrates into simple sugars.
HCl activates pepsinogen to pepsin, which begins protein
digestion.
HCl neutralizes stomach acid to protect the intestines.
4. Approximately what percent of hemoglobin saturation would you
observe in the blood after it passed through muscle tissues undergoing
exercise and producing high levels of CO2? Use the figure for
reference.
, 62%
37%
81%
70%
5. The graph also illustrates:
the demand for food is more inelastic than that for fat
the peak output for fat is greater than that for
food
the demand for fat is more inelastic than that for food
,the peak output for food is greater than that for fat
, 6. This graph indicates that _________
low-fat milk has less vitamin D per calorie than sweetened iced
tea
low-fat milk contains more calcium per calorie than sweetened
iced tea
sweetened iced tea is a poor source of calcium
sweetened iced tea is more nutrient dense than milk
7. A patient newly diagnosed with hypothyroidism is prescribed
Levothyroxine (Synthroid) 0.25 mg PO daily. After 6 weeks of treatment,
the nurse determines that the medication was effective if the:
TSH level is 2
Total T4 level is 2 mcg/dL
8. What are the three main types of energy-yielding nutrients?
Vitamins, minerals, water
Amino acids, fatty acids, glucose
Carbohydrates, fats, proteins
Fiber, sugars, starches
9. To estimate REE in normal weight and obese individuals, use:
