Correct Answer: D

Rationale: The correct answer is Duloxetine. Duloxetine is commonly used to treat fibromyalgia as a serotonin-norepinephrine reuptake inhibitor. It is also indicated for depression and diabetic peripheral neuropathy. Colchicine, Hydroxychloroquine, and Auranofin are not typically prescribed for fibromyalgia.

Correct Answer: D

Rationale: When a client is prescribed Prednisone, monitoring serum glucose levels is essential. Prednisone, a corticosteroid, can lead to hyperglycemia. Therefore, regular monitoring of serum glucose helps in detecting and managing any potential hyperglycemic effects of the medication.

Correct Answer: A

Rationale: Losartan, an angiotensin II receptor blocker (ARB), can cause hyperkalemia by affecting the renin-angiotensin-aldosterone system. Monitoring serum potassium levels is crucial to detect and manage any potential hyperkalemia, which can lead to serious cardiac arrhythmias.

Correct Answer: B

Rationale: Pamidronate is given through IV infusion and can be irritating to veins. Therefore, the nurse should frequently assess the IV site for thrombophlebitis during the administration to promptly detect any potential complications related to the infusion.

Correct Answer: B

Rationale: Atenolol is a beta-blocker that can cause bradycardia, leading to a decreased heart rate. Monitoring heart rate regularly is essential to detect any significant decreases promptly and seek medical attention. While other choices may be relevant to the client's overall health, monitoring heart rate is the priority instruction due to the nature of Atenolol's effects.