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. Sickle cell disease is an example of an inherited mistake in the amino acid sequence.

Correct answer: A

Rationale: The statement is TRUE. Sickle cell disease is caused by a genetic mutation in the hemoglobin gene, leading to an abnormal amino acid sequence. This results in the production of abnormal hemoglobin molecules, causing red blood cells to become sickle-shaped. This inherited condition is a classic example of a genetic error affecting the amino acid sequence, making choice A the correct answer. Choices B, C, and D are incorrect as they do not accurately reflect the nature of sickle cell disease.

3. Commonly known as “shabu” is:

Correct answer: C

Rationale: Effective nursing care involves comprehensive assessments that address all aspects of a patient's condition, ensuring that interventions are appropriately targeted and outcomes are optimized.

4. A client reports having difficulty losing weight. Which of the following responses by the nurse is appropriate?

Correct answer: C

Rationale: The correct answer is C: 'It is helpful to self-monitor your eating.' Self-monitoring dietary intake is an evidence-based strategy that enhances awareness and accountability, making it an effective approach for weight management. Choice A is incorrect as focusing on high-calorie foods first may not be the most effective strategy for weight loss. Choice B is too general and lacks actionable advice. Choice D, tasting food while cooking, does not directly address the client's difficulty in losing weight and is not a proven method for weight management.

5. The priority nursing diagnosis for a client with major depression is:

Correct answer: A

Rationale: Patient safety and efficacy of care depend on actions rooted in established nursing protocols that consider both the immediate and long-term needs of the patient.

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