Correct Answer: C

Rationale: The correct instruction for a client starting clonidine therapy for hypertension is to avoid driving until their reaction to the medication is known. Clonidine can cause drowsiness, so engaging in activities like driving that require alertness should be avoided until the individual understands how the medication affects them.

Correct Answer: B

Rationale: The correct answer is B: Alcohol. Clients should avoid alcohol while taking metronidazole to prevent a disulfiram-like reaction, which can cause symptoms such as nausea, vomiting, headache, and flushing. It is important to educate clients on the potential interactions between metronidazole and alcohol to ensure the effectiveness of the medication and prevent adverse reactions.

Correct Answer: B

Rationale: The correct answer is B: Fever. Fever is a key symptom of serotonin syndrome, a potentially life-threatening condition that can occur with the use of serotonergic medications like Sertraline. Serotonin syndrome is characterized by a combination of symptoms, including fever, agitation, rapid heartbeat, sweating, shivering, tremors, and in severe cases, it can lead to seizures, coma, and even death. Therefore, the nurse should be vigilant in monitoring for fever as an early sign of serotonin syndrome in clients taking Sertraline.

Correct Answer: D

Rationale: In this scenario, the priority action for the nurse is to obtain baseline vital signs. This is crucial for establishing a baseline assessment, especially for a patient undergoing opioid withdrawal and starting a new medication like Clonidine. Monitoring vital signs is essential for evaluating the patient's response to treatment and detecting any potential complications early on.

Correct Answer: C

Rationale: The correct answer is bone marrow suppression. Methotrexate can lead to bone marrow suppression, resulting in anemia, leukopenia, and thrombocytopenia. Monitoring for signs of decreased blood cell counts is crucial to prevent complications.