Correct Answer: A

Rationale: Evaluating the closest proximal pulse is essential when monitoring tissue perfusion post-amputation. This pulse provides crucial information about the circulation and perfusion to the limb. Observing the color and amount of wound drainage (Choice B) is more related to wound healing assessment rather than tissue perfusion. Observing for swelling around the stump (Choice C) may indicate inflammation or infection but is not the most direct assessment of tissue perfusion. Assessing skin elasticity of the stump (Choice D) is important for skin integrity but does not directly reflect tissue perfusion.

Correct Answer: C

Rationale: Elevated blood pressure is a significant risk factor for coronary artery disease because it increases the strain on the arteries, leading to potential damage and a higher risk of developing coronary artery disease. Elevated HDL cholesterol (Choice A) is actually considered beneficial as it helps reduce the risk of heart disease. Low LDL cholesterol (Choice B) is also beneficial as high levels of LDL are associated with an increased risk of coronary artery disease. Low triglyceride levels (Choice D) are not typically considered a major risk factor for coronary artery disease.

Correct Answer: A

Rationale: The correct first action when managing an acute exacerbation of asthma is to administer a bronchodilator as prescribed. Bronchodilators help open the airways and improve breathing in individuals experiencing an asthma exacerbation. Checking oxygen saturation (Choice B) is important but not the first action. Reassuring the client and encouraging deep breathing (Choice C) can be beneficial but should come after administering the bronchodilator. Providing emotional support to reduce anxiety (Choice D) is important but is not the initial priority in managing an acute exacerbation of asthma.

Correct Answer: A

Rationale: The correct answer is to administer a dose of hydrocortisone immediately. In Addison's disease, confusion and weakness can be signs of an adrenal crisis. Administering hydrocortisone promptly is crucial to prevent further deterioration. Checking electrolyte levels (Choice B) is important but not the first action in managing an acute adrenal crisis. Administering normal saline (Choice C) is not the priority in this situation. Measuring blood pressure in both arms (Choice D) is not the initial action needed to address the client's confusion and weakness in Addison's disease.

Correct Answer: D

Rationale: The correct answer is D because the inability to complete sentences without pausing indicates respiratory distress and the need for immediate intervention. This finding suggests an increased work of breathing and inadequate oxygenation. Choices A, B, and C are not as urgent as choice D. Feeling short of breath (choice A) is expected in pneumonia but does not necessarily indicate the need for immediate intervention. An oxygen saturation of 92% (choice B) is slightly below the normal range but may not require immediate intervention. A respiratory rate of 20 breaths per minute (choice C) is within the normal range and does not signify an urgent need for intervention.