Correct Answer: C

Rationale: Valproate belongs to the therapeutic class of anticonvulsants. It is primarily used to manage seizures but is also effective in treating vascular headaches. Therefore, it is not classified as an anticoagulant, antianxiety medication, or mood stabilizer.

Correct Answer: A

Rationale: Spironolactone, a potassium-sparing diuretic, can lead to hyperkalemia due to its mechanism of action. Hyperkalemia, or elevated potassium levels, can result in serious cardiac complications and requires immediate medical attention. Therefore, the nurse should promptly report any signs or symptoms of hyperkalemia to prevent potential adverse outcomes in the patient.

Correct Answer: B

Rationale: The correct instruction when teaching a client about Clonidine is to expect to feel drowsy or lightheaded. Clonidine can cause these side effects, especially when starting the medication. The nurse should advise the client to avoid activities that require alertness until they understand how the medication affects them.

Correct Answer: B

Rationale: The correct answer is B. Diarrhea can indicate the development of a suprainfection, which can be serious. Therefore, it is essential for the client to notify the healthcare provider if they experience diarrhea while taking Tetracycline to treat a GI infection caused by Helicobacter pylori.

Correct Answer: A

Rationale: Ondansetron, an antiemetic, should be taken 30 minutes before chemotherapy to prevent nausea and vomiting. This timing allows the medication to be most effective in controlling chemotherapy-induced nausea and vomiting.