Correct Answer: C

Rationale: The correct action for the PN in this situation is to administer the analgesia as requested by the client. Pain management is based on the client's self-report of pain, which is the most reliable indicator of pain intensity. Analgesics should be given promptly when pain occurs and before it worsens. Following the administration of medication, the PN should discuss the situation with the charge nurse for further guidance or assessment.

Correct Answer: B

Rationale: The correct answer is to review the client's serum potassium level before administering furosemide. Furosemide, a loop diuretic, can lead to hypokalemia, making it crucial to assess potassium levels to prevent potential complications like cardiac arrhythmias associated with low potassium levels.

Correct Answer: B

Rationale: Buspirone may take several weeks to take effect, so clients should continue taking it as prescribed and not expect immediate relief.

Correct Answer: B

Rationale: The correct answer is B, liver toxicity. Pioglitazone is known to cause liver toxicity, so it is essential for the nurse to monitor the client's liver function while on this medication. Monitoring liver function tests can help detect any signs of liver damage early, allowing for timely intervention to prevent serious complications.

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.