Correct Answer: A

Rationale: Metformin should be taken with meals to reduce gastrointestinal side effects and to ensure better absorption.

Correct Answer: C

Rationale: Severe pain around the eyes that radiates over the face is a characteristic symptom of acute angle-closure glaucoma. This intense pain is typically accompanied by other symptoms such as blurred vision, halos around lights, redness in the eye, and sometimes nausea and vomiting. The acute rise in intraocular pressure leads to these symptoms, indicating a medical emergency that requires immediate attention to prevent vision loss.

Correct Answer: B

Rationale: Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should closely observe the client's lower extremities for any signs of swelling, which could indicate the development of edema.

Correct Answer: B

Rationale: Ciprofloxacin should not be taken with dairy products because calcium can interfere with the absorption of the medication. The client should be instructed to take it 1 hour before or 2 hours after consuming dairy products to ensure optimal effectiveness of the medication.

Correct Answer: B

Rationale: Nifedipine, a calcium channel blocker, can lead to peripheral edema as an adverse effect. The nurse should monitor the client for swelling in the lower extremities, as it indicates the onset of edema. Hypertension is typically treated with Nifedipine and is not an adverse effect of the medication. Hyperglycemia and bradycardia are not commonly associated with Nifedipine use.