HESI LPN
Nutrition Final Exam
1. 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.
2. What is a primary intervention for a child with a suspected respiratory infection?
- A. Administer antiviral medications
- B. Increase fluid intake and rest
- C. Restrict all physical activity
- D. Provide high-dose vitamin supplements
Correct answer: B
Rationale: Increasing fluid intake and rest is a primary intervention for a child with a suspected respiratory infection because it helps support the body’s recovery and maintains hydration levels. Antiviral medications (Choice A) are only used for specific viral infections and are not routinely recommended for suspected respiratory infections. Restricting physical activity (Choice C) may be necessary in certain cases to prevent overexertion, but it is not a primary intervention. Providing high-dose vitamin supplements (Choice D) may support the immune system in general but is not a primary intervention for a suspected respiratory infection.
3. 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.
4. What is a key aspect of managing a child with eczema?
- A. Daily baths with soap
- B. Regular use of emollients and moisturizers
- C. High-protein diet
- D. Frequent exposure to sunlight
Correct answer: B
Rationale: Regular use of emollients and moisturizers is a key aspect of managing eczema in children. Emollients help maintain skin hydration and reduce irritation, which are crucial in managing eczema symptoms. Daily baths with soap can actually worsen eczema by drying out the skin further. A high-protein diet and frequent exposure to sunlight are not directly related to managing eczema and may not have a significant impact on the condition.
5. Your friend Carrie took a daily supplement of vitamin C and tells you that she feels a lot better. Her statement to you is best described as what?
- A. an anecdote
- B. theory
- C. interpretation
- D. conclusion
Correct answer: A
Rationale: The correct answer is A, 'an anecdote.' An anecdote is a personal account or experience, not necessarily backed by scientific evidence. In this case, Carrie's statement about feeling better after taking vitamin C is based on her personal experience and does not constitute scientific evidence or a generalizable conclusion. Choice B, 'theory,' would imply a systematic explanation based on scientific evidence, which is not the case here. Choice C, 'interpretation,' typically involves explaining or understanding something based on available information, not a personal account. Choice D, 'conclusion,' would be a general statement derived from specific information or facts, which is not applicable in this context.
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