Correct Answer: B

Rationale: It is crucial to advise the client to avoid drinking grapefruit juice while taking Amiodarone. Grapefruit juice can inhibit the metabolism of Amiodarone, causing increased blood levels of the medication and raising the risk of adverse effects, such as cardiac toxicity.

Correct Answer: A

Rationale: The correct answer is St. John's wort. St. John's wort can reduce the effectiveness of Warfarin by interacting with its metabolism, potentially leading to decreased anticoagulant effects. Therefore, the nurse should instruct the client to avoid using St. John's wort while taking Warfarin to prevent adverse drug interactions. Additionally, it is essential to educate the client about other herbal supplements like garlic and ginseng, which may also interact with Warfarin and should be avoided to ensure the medication's efficacy and safety.

Correct Answer: C

Rationale: The correct answer is increased urine output. Dopamine increases cardiac output and improves renal perfusion, leading to increased urine output. This response indicates that the medication is effective in treating shock by enhancing renal function and perfusion.

Correct Answer: C

Rationale: The correct answer is Acetaminophen. Acetaminophen, especially in high doses, can increase the risk of bleeding in clients taking warfarin. It is important to monitor for signs of bleeding when these medications are used concurrently to prevent adverse effects.

Correct Answer: A

Rationale: Bradycardia is a common sign of Digoxin toxicity. Digoxin can lead to toxicity, which can manifest as various signs and symptoms, including bradycardia. Monitoring the client's heart rate closely is crucial to detect and manage potential toxicity early.