what physiologic role does calcium play in the body
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Nursing Elites

ATI RN

ATI Nutrition Proctored Exam

1. What physiologic role does calcium play in the body?

Correct answer: A

Rationale: The correct answer is A: 'Blood clotting, transmission of nerve impulses, muscle contraction and relaxation.' Calcium plays a crucial role in various physiological functions such as blood clotting, transmission of nerve impulses, muscle contraction and relaxation, membrane permeability, and activation of certain enzymes. Choice B is incorrect because while calcium is involved in calcium homeostasis, it is not the only role it plays in the body. Choice C is incorrect as calcium indeed has several known metabolic functions, and it is not solely for preventing caries. Choice D is also incorrect as the functions mentioned are primarily carried out by other nutrients and not specifically by calcium.

2. A nurse is providing teaching about food allergies to the parents of a toddler. Which of the following foods should the nurse identify as highest risk for allergies in toddlers?

Correct answer: A

Rationale: The correct answer is A: Eggs. Eggs are one of the most common food allergens in toddlers and should be introduced carefully. Milk (choice B) is also a common allergen but is typically introduced earlier in a child's diet. Bananas (choice C) and citrus fruits (choice D) are less likely to cause allergic reactions compared to eggs.

3. In approximately what percentage of cases is the prevalence seen?

Correct answer: A

Rationale: The correct answer is A, Type 1 Diabetes. The prevalence of Type 1 Diabetes is seen in approximately 5% to 10% of cases. This statement highlights a key epidemiological characteristic of Type 1 Diabetes. Choice B, Type 2 Diabetes, is incorrect because the prevalence mentioned does not align with Type 2 Diabetes, which has a much higher prevalence in the general population. Choices C and D are not relevant to the question and can be disregarded.

4. A client with iron deficiency anemia is being taught about dietary recommendations by a nurse. Which of the following dietary recommendations should the nurse include as a food that enhances iron absorption when consumed with nonheme iron?

Correct answer: A

Rationale: Tomato juice is the correct answer because it contains vitamin C, which enhances the absorption of nonheme iron. Vitamin C helps convert nonheme iron into a form that is easier for the body to absorb. Tea and milk should be avoided when consuming nonheme iron as they can inhibit iron absorption. Dried beans, although a good source of iron, do not enhance iron absorption when consumed with nonheme iron.

5. Bones continuously lose and gain minerals. This ongoing process is called?

Correct answer: D

Rationale: The correct answer is D, 'remodeling.' Remodeling is the process by which bones continuously lose and gain minerals, maintaining bone strength and integrity over time. 'Reorganization' (choice A), 'reorienting' (choice B), and 'demineralizing' (choice C) do not accurately describe the process of bones continuously losing and gaining minerals.

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