what is one characteristic of vitamins that differentiates them from minerals
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HESI PN Nutrition Practice Exam

1. What is one characteristic that differentiates vitamins from minerals?

Correct answer: A

Rationale: The correct answer is A. Vitamins are organic compounds, containing carbon, which is a key characteristic that differentiates them from minerals. Choice B is incorrect because vitamins do not provide energy; they are not a source of calories. Choice C is incorrect as both vitamins and minerals are considered micronutrients due to being essential in small amounts. Choice D is incorrect because while it is true that vitamins are needed in small amounts, this is not the characteristic that sets them apart from minerals.

2. What is a long-term complication of cleft lip and palate?

Correct answer: C

Rationale: The correct long-term complication of cleft lip and palate is faulty dentition. Individuals with cleft lip and palate may experience dental issues such as missing, extra, or misaligned teeth, which can affect speech and the aesthetic appearance of the mouth. Cognitive impairment, as mentioned in choice A, is not a typical long-term complication associated with cleft lip and palate. While altered growth and development (choice B) can be affected during early stages, it is not a prominent long-term complication. Choice D, physical abilities, is not directly related to the typical long-term complications of cleft lip and palate.

3. How many minerals are known to be essential for human nutrition?

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.

4. Why must a child with acute laryngotracheobronchitis be kept NPO?

Correct answer: D

Rationale: In acute laryngotracheobronchitis, rapid respirations increase the risk of aspiration due to compromised airway protection and potential for secretions to enter the lungs. Keeping the child NPO helps prevent the risk of aspiration pneumonia. Choice A is incorrect because epinephrine is not typically used for laryngotracheobronchitis. Choice B is incorrect as hydration with IV fluids does not eliminate the risk of aspiration. Choice C is also incorrect because the child being hungry is not the primary reason for keeping them NPO in this condition.

5. What is the study of how a person's genes interact with nutrients?

Correct answer: B

Rationale: Nutritional genomics, the correct answer, specifically focuses on how a person's genes interact with nutrients, affecting health and disease. Genetic counseling (choice A) refers to the process of helping people understand and adapt to the medical, psychological, and familial implications of genetic contributions to disease. Genetic metabolomics (choice C) combines genetic and metabolomic data to study metabolic pathways. Nutritional genetics (choice D) generally refers to the broader field of genetics as it relates to nutrition, while nutritional genomics, the most precise term, delves into the specific gene-nutrient interactions.

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