which nutrient source yields more than 4 kcalories per gram

HESI LPN

LPN Nutrition Practice Test

1. Which nutrient source yields more than 4 kcalories per gram?

A. plant fats
B. plant proteins
C. animal proteins
D. plant carbohydrates

Correct answer: A

Rationale: The correct answer is plant fats (Choice A). Fats, including plant fats, provide 9 kcalories per gram, which is more than 4 kcalories. Plant proteins (Choice B) and animal proteins (Choice C) provide 4 kcalories per gram. Plant carbohydrates (Choice D) also provide 4 kcalories per gram. Therefore, Choices B, C, and D are incorrect because they do not yield more than 4 kcalories per gram.

2. How is gastroesophageal reflux (GER) typically treated in infants?

A. Keeping the infant NPO
B. Thickening the formula or breast milk with cereal
C. Placing the infant to sleep on the side
D. Switching the infant to cow's milk

Correct answer: B

Rationale: Thickening the formula or breast milk with cereal is a common treatment for gastroesophageal reflux (GER) in infants. By adding cereal, the feedings become heavier, making it less likely for the stomach contents to reflux. Keeping the infant NPO (nothing by mouth) is not typically necessary for GER treatment and might not be appropriate. Placing the infant to sleep on the side is not recommended due to the risk of sudden infant death syndrome (SIDS). Switching the infant to cow's milk is also not a recommended treatment for GER as it can exacerbate symptoms due to its protein content.

3. What is the recommended daily intake of fiber for adults?

A. 10 grams
B. 15 grams
C. 20 grams
D. 25 grams

Correct answer: D

Rationale: The recommended daily intake of fiber for adults is 25 grams. Fiber plays a crucial role in maintaining digestive health, preventing constipation, and aiding in weight management. Options A (10 grams), B (15 grams), and C (20 grams) are incorrect as they are below the recommended daily intake of fiber for adults, which is 25 grams.

4. What is an important consideration when administering medications to a child with a history of chronic renal failure?

A. Increased frequency of medication administration
B. Adjustments in dosage due to altered drug metabolism
C. Avoidance of all medications
D. Use of only intravenous medications

Correct answer: B

Rationale: When administering medications to a child with chronic renal failure, it is crucial to consider adjustments in dosage due to altered drug metabolism. Children with chronic renal failure may have impaired drug excretion, leading to potential drug accumulation and toxicity. Increasing the frequency of medication administration (choice A) may not address the altered drug metabolism issue and could increase the risk of adverse effects. Avoiding all medications (choice C) is not practical or safe as some medications may be necessary for the child's health. Using only intravenous medications (choice D) is not always required and may not be the best route of administration for all medications needed.

5. What is the primary role of dietary guidelines?

A. To ensure that all food groups are consumed in appropriate proportions.
B. To prevent chronic diseases and promote overall well-being.
C. To help individuals meet their nutritional needs while reducing the risk of chronic disease.
D. To offer specific recommendations for the intake of nutrients that support health.

Correct answer: C

Rationale: The correct answer is C: 'To help individuals meet their nutritional needs while reducing the risk of chronic disease.' Dietary guidelines are designed to provide guidance on the types and amounts of food that support good health and reduce the risk of chronic diseases. Choice A has been corrected to mention 'appropriate proportions' instead of 'equal amounts,' as dietary guidelines emphasize balance and variety. Choice B is partially correct, but the primary focus of dietary guidelines is on meeting nutritional needs. Choice D is incorrect because while dietary guidelines may include nutrient recommendations, their primary focus is on overall dietary patterns rather than specific nutrient intake.