Correct Answer: A

Rationale: The correct answer is A: 'Monitor for a persistent cough.' Lisinopril, an ACE inhibitor, is associated with a common side effect of a persistent dry cough. This cough can be bothersome to the client and should be reported to their healthcare provider. Choices B, C, and D are incorrect because bradycardia, dizziness, swelling, difficulty breathing, headache, and blurred vision are not typically associated with lisinopril use.

Correct Answer: A

Rationale: Magnesium plays a crucial role in maintaining normal cardiac rhythms, particularly in patients with cardiac conditions. Abnormal levels can lead to arrhythmias, which is why continuous monitoring of the heart's electrical activity is important. Magnesium's effect on neuromuscular and cardiac function makes it essential to monitor its levels, and any discrepancies can impact treatment decisions. Checking for visual difficulties (choice B) may be important in MG but is not the priority in the context of decreased serum magnesium. Assessing for hip and hand joint pain (choice C) is not directly related to the issue of decreased serum magnesium. Noting the most recent hemoglobin level (choice D) is not the priority in this situation compared to monitoring the cardiac rhythm due to low magnesium levels.

Correct Answer: C

Rationale: The correct answer is to palpate the abdomen. When a client abruptly stops taking prednisone, there is a risk of adrenal insufficiency, which can present with symptoms like fatigue. Palpating the abdomen is crucial to assess for signs of adrenal crisis, such as abdominal pain, which can indicate severe adrenal insufficiency. Auscultating breath sounds (Choice A) and observing the skin for bruising (Choice D) are not the priority interventions in this situation. While measuring vital signs (Choice B) is important, palpating the abdomen takes precedence in this case to assess for potential adrenal insufficiency.

Correct Answer: C

Rationale: The activated partial thromboplastin time (aPTT) is the most important laboratory value to monitor during heparin therapy. It measures the intrinsic pathway of coagulation and is used to assess the effectiveness of heparin as an anticoagulant. Keeping the aPTT within the therapeutic range is crucial to prevent complications such as bleeding or clot formation. Prothrombin time (PT) and International normalized ratio (INR) are used to monitor warfarin therapy, not heparin. Platelet count is important to assess for thrombocytopenia, a potential side effect of heparin, but it is not the primary laboratory value to monitor the effectiveness of heparin therapy.

Correct Answer: A

Rationale: The correct action for the nurse to implement is to check the client's glucose level with a glucometer. Constant hunger and thirst along with weight loss can be indicative of hyperglycemia, a possible side effect of saquinavir. Monitoring the client's glucose levels is crucial in this situation. Measuring the client's weight accurately (Choice B) is important for monitoring purposes but does not address the immediate concern of hunger, thirst, and weight loss. Reassuring the client that weight will stabilize as viral load decreases (Choice C) is not appropriate in this scenario as the symptoms described need immediate attention. Increasing the dose of saquinavir (Choice D) without assessing the client's glucose level can worsen the hyperglycemia.