Nursing Elites

1. Which of the following terms describes the amount of blood ejected per heartbeat?

• A. Stroke volume
• B. Cardiac output
• C. Ejection fraction
• D. Afterload

Correct answer: A

Rationale: The correct answer is A: Stroke volume. Stroke volume refers to the amount of blood ejected by the left ventricle in one contraction. Choice B, Cardiac output, is the total volume of blood pumped by the heart per minute and is calculated by multiplying stroke volume by heart rate. Choice C, Ejection fraction, is the percentage of blood pumped out of the left ventricle with each heartbeat. Choice D, Afterload, refers to the pressure or resistance that the ventricles must overcome to eject blood during systole. Therefore, in the context of the question, the term that specifically describes the amount of blood ejected per heartbeat is stroke volume.

2. Which nutrient is critical for wound healing and immune function?

• A. Vitamin B12
• B. Vitamin C
• C. Vitamin D
• D. Vitamin K

Correct answer: B

Rationale: Vitamin C is essential for collagen formation and immune function.

3. What physiologic role does magnesium play in the body?

• A. Blood clotting, transmission of nerve impulses, muscle contraction and relaxation
• B. Calcium homeostasis, structural integrity of heart muscle
• C. No known metabolic function, caries-preventing properties
• D. ATP energy release; metabolism of fats, carbohydrates, proteins; regulates acid-base balance

Correct answer: B

Rationale: The correct answer is B. Magnesium plays an important role in maintaining calcium homeostasis and preventing skeletal abnormalities. It is involved in more than 300 enzymatic reactions, including energy metabolism, insulin activity, and glucose use. Magnesium is vital to the structural integrity of heart muscle and other muscles and nerves. While magnesium does play a role in blood clotting, nerve impulses, muscle contraction, relaxation, ATP energy release, and metabolism of fats, carbohydrates, proteins, the primary physiologic role of magnesium in the body is related to calcium homeostasis and maintaining the structural integrity of the heart muscle. Choice A is incorrect because it includes functions of magnesium, but they are not its primary physiologic role. Choice C is incorrect as magnesium has several known metabolic functions. Choice D is incorrect because although magnesium is involved in ATP energy release and metabolism, its primary role is related to calcium homeostasis and structural integrity of muscle.

4. A nurse is caring for a client with a thiamine deficiency. Which assessment findings will the nurse expect?

• A. Tachycardia, muscle weakness, and lack of coordination
• B. Swollen lips, cracks in the corners of the mouth, and glossitis
• C. Neuropsychiatric symptoms of delusions and hallucinations
• D. Scaly rash on arms, dementia, and diarrhea

Correct answer: A

Rationale: Thiamine deficiency, also known as Vitamin B1 deficiency, can present with various symptoms. Tachycardia, muscle weakness, and lack of coordination are classic signs of thiamine deficiency due to its role in energy metabolism. Swollen lips, cracks in the corners of the mouth, and glossitis are more indicative of a deficiency in riboflavin (Vitamin B2). Neuropsychiatric symptoms of delusions and hallucinations are characteristic of niacin (Vitamin B3) deficiency. A scaly rash on the arms, dementia, and diarrhea are not typically associated with thiamine deficiency. Therefore, the correct assessment findings for a client with thiamine deficiency are tachycardia, muscle weakness, and lack of coordination.

5. By force of law, therefore, the PRC-Board of Nursing released Resolution No. 14 Series of 1999 entitled: "Adoption of a Nursing Specialty Certification Program and Creation of Nursing Specialty Certification Council." This rule-making power is called:

• A. Quasi-Judicial Power
• B. Regulatory Power
• C. Quasi-Legislative Power
• D. Executive/Promulgating Power

Correct answer: B

Rationale: The correct answer is B: Regulatory Power. Regulatory power involves the authority to create rules and regulations that govern a specific area. In this case, the PRC-Board of Nursing's release of Resolution No. 14 Series of 1999 for the Nursing Specialty Certification Program falls under regulatory power as it establishes guidelines and standards for nursing specialty certification. Choices A, C, and D are incorrect. Quasi-judicial power involves making decisions on rights and obligations, quasi-legislative power involves creating regulations with the force of law, and executive/promulgating power involves enforcing and implementing laws and regulations.

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