Correct Answer: C

Rationale: Ondansetron can cause tremors as an adverse effect. Monitoring for tremors is essential as it can indicate a potential adverse reaction to the medication and prompt intervention is necessary to ensure the client's safety and comfort.

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: C

Rationale: When administering IV Acyclovir to a client with Varicella, the nurse should infuse the medication over at least 1 hour to prevent nephrotoxicity. Rapid infusion can lead to adverse effects such as renal damage. Therefore, it is crucial to follow the recommended infusion rate to ensure the client's safety and well-being.

Correct Answer: B

Rationale: Phenytoin is primarily used as an anticonvulsant to prevent and control seizures. It works by stabilizing electrical activity in the brain, making it effective in managing conditions like epilepsy. Antidiabetic medications are used to regulate blood sugar levels, mood stabilizers help manage mood disorders, and antianxiety agents are used to reduce anxiety symptoms, none of which are the primary therapeutic action of Phenytoin.

Correct Answer: B

Rationale: Limiting intake of caffeine-containing beverages is important for managing peptic ulcer disease as caffeine can stimulate gastric acid secretion, which may worsen the condition. It is advisable to choose decaffeinated beverages and avoid caffeinated drinks to help reduce the risk of aggravating the ulcer.