in which order will the nurse take these steps to prepare nph 20 units and regular insulin 2 units using the same syringe put a comma and a space betw in which order will the nurse take these steps to prepare nph 20 units and regular insulin 2 units using the same syringe put a comma and a space betw
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1. In which order will the nurse take these steps to prepare NPH 20 units and regular insulin 2 units using the same syringe? (Put a comma and a space between each answer choice [A, B, C, D, E]).

Correct answer: C

Rationale: The correct order to prepare NPH 20 units and regular insulin 2 units using the same syringe is to start by rotating the NPH vial, then injecting 20 units of air into the NPH vial. Next, inject 2 units of air into the regular insulin vial, followed by withdrawing the regular insulin. Finally, withdraw 20 units of NPH. This sequence ensures proper mixing and preparation of the insulin doses. Choices A, B, and D have incorrect sequences that may lead to incorrect dosages or inadequate mixing of the insulins.

2. Why is a pulse oximeter attached to Mr. Dizon's finger?

Correct answer: D

Rationale: A pulse oximeter is used to detect the oxygen saturation levels in arterial blood before the onset of hypoxemia symptoms. This device provides essential information about the effectiveness of oxygen transportation to the body's tissues. Choice A is incorrect because a pulse oximeter does not directly measure hemoglobin levels nor determine the need for a blood transfusion. Choice B is incorrect because a pulse oximeter is designed specifically to assess oxygen saturation, not tissue perfusion. Choice C is incorrect because a pulse oximeter is not used to measure the efficacy of anti-hypertensive medications, but rather to monitor oxygen levels in the blood.

3. Which of the following best describes the purpose of benchmarking in healthcare?

Correct answer: B

Rationale: The correct answer is B: 'To identify best practices and implement them.' Benchmarking in healthcare aims to compare performance metrics across organizations to identify the most effective practices and implement them. This helps healthcare providers improve their performance and outcomes by adopting proven successful strategies. Choices A, C, and D are incorrect because while benchmarking may involve comparing performance metrics and ensuring standards compliance, its primary purpose is to identify and implement best practices.

4. What is a primary responsibility of a community health nurse?

Correct answer: C

Rationale: A primary responsibility of a community health nurse is advocating for policy changes that positively impact health outcomes within the community. By advocating for policy changes, community health nurses can address social determinants of health and help create sustainable improvements in the overall health and well-being of the community.

5. A healthcare professional is caring for a client who is experiencing respiratory distress. Which of the following early manifestations of hypoxemia should the professional recognize?

Correct answer: Pale skin

Rationale: Pale skin is an early manifestation of hypoxemia due to decreased oxygenation of the blood. The skin may appear pale as the body redirects blood flow to vital organs in response to low oxygen levels. Confusion, bradycardia, and hypotension may occur as hypoxemia worsens, but pale skin is one of the initial signs that healthcare professionals should recognize when assessing a client experiencing respiratory distress.

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