Correct Answer: D

Rationale: An apical pulse rate of 50 beats/minute indicates bradycardia, a heart rate below the normal range, which requires immediate nursing intervention before administering medication to address the potential impact of the bradycardia on the patient's overall condition.

Correct Answer: A

Rationale: The correct answer is A: Weight gain. Valproate is known to cause weight gain as a common adverse effect. It is important for the nurse to monitor the client's weight regularly while on this medication to detect and address any changes that may occur.

Correct Answer: C

Rationale: The practical nurse should advise the client to take sulfonamides with a full glass of water to help prevent crystalluria. It is essential to take the medication on an empty stomach, ideally 1 hour before eating or 2 hours after eating to maximize its absorption and effectiveness. Continuing to drink cranberry juice is beneficial, but it is important to take the medicine separately to enhance its therapeutic action.

Correct Answer: A

Rationale: Tofacitinib is an immunosuppressive medication used in rheumatoid arthritis. Patients taking tofacitinib should avoid live vaccines because the medication can weaken the immune system, making live vaccines potentially harmful. It is essential to educate the client on this to prevent any complications related to live vaccines during their treatment.

Correct Answer: A

Rationale: The correct answer is A - Rash. Rash is the most common adverse side effect of all generations of penicillin, indicating an allergy to the medication. An allergic reaction could lead to anaphylactic shock, a severe and potentially life-threatening emergency. It is crucial for the client to inform the healthcare provider promptly if a rash develops after taking ampicillin sodium.