HESI LPN
Nutrition Final Exam
1. What is a common side effect of corticosteroid therapy in children?
- A. Increased appetite
- B. Decreased blood glucose levels
- C. Inhibited growth
- D. Mood changes
Correct answer: A
Rationale: The correct answer is A: Increased appetite. Corticosteroid therapy commonly causes increased appetite in children. This side effect can lead to weight gain and other metabolic changes. Option B is incorrect because corticosteroid therapy is more likely to result in increased blood glucose levels. Option C is incorrect because corticosteroid therapy can inhibit growth due to its impact on the endocrine system. Option D is incorrect because corticosteroid therapy can lead to mood changes such as irritability or even mood swings rather than improved mood.
2. Which measure best describes the amounts of nutrients that should be consumed by the population?
- A. The Dietary Reference Intakes, as they provide a set of nutrient intake values for healthy people in the United States and Canada
- B. The Tolerable Upper Intake levels, as they indicate the maximum daily amount of a nutrient considered safe for most healthy people
- C. The Estimated Average Requirements, as they reflect the average daily amount of a nutrient needed to maintain a specific function in half of the healthy individuals of a population
- D. The Recommended Dietary Allowances, as they represent the average daily amount of a nutrient considered adequate to meet the known nutrient needs of practically all healthy individuals
Correct answer: D
Rationale: The Recommended Dietary Allowances (RDAs) are the best measure to describe the amounts of nutrients that should be consumed by the population. RDAs represent the average daily intake level that meets the nutrient requirements of nearly all (97-98%) healthy individuals in a particular life stage and gender group. Choice A, the Dietary Reference Intakes, provide a set of nutrient intake values but do not specifically address the average daily amount of a nutrient considered adequate for practically all individuals. Choice B, the Tolerable Upper Intake levels, focus on the maximum daily amount of a nutrient deemed safe for most healthy people, not the average daily amount needed. Choice C, the Estimated Average Requirements, reflect the average daily amount of a nutrient needed by half of the healthy individuals, which is not as comprehensive as the RDAs that cater to nearly all healthy people.
3. What is a common sign of a urinary tract infection in older children?
- A. Frequent urination
- B. Increased appetite
- C. Elevated blood pressure
- D. Decreased energy levels
Correct answer: A
Rationale: Frequent urination is a common sign of a urinary tract infection in older children. It is often accompanied by other symptoms such as pain or discomfort. Increased appetite (Choice B) is not typically associated with urinary tract infections. Elevated blood pressure (Choice C) is more commonly linked to conditions like hypertension, not urinary tract infections. Decreased energy levels (Choice D) can be a sign of various health issues but are not a typical symptom of a urinary tract infection.
4. What is the term for the study of how diet affects gene expression?
- A. Epigenetics
- B. Nutrigenomics
- C. Genomics
- D. Genetics
Correct answer: B
Rationale: Nutrigenomics is the study of how diet affects gene expression, influencing health outcomes and disease risk. Epigenetics (choice A) involves changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence. Genomics (choice C) is the study of an organism's entire genome. Genetics (choice D) is the study of heredity and the variation of inherited characteristics.
5. How many minerals are known to be essential for human nutrition?
- A. 8
- B. 12
- C. 16
- D. 20
Correct answer: C
Rationale: There are 16 essential minerals required for human nutrition. These minerals include calcium, potassium, iron, and others. Choice A (8) is incorrect as it underestimates the number of essential minerals. Choice B (12) is also incorrect as it does not encompass the full count of essential minerals. Choice D (20) is incorrect as it overestimates the number of essential minerals.
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