A nurse is planning care for a client who has atrial fibrillation and reports heart palpitations, lightheadedness, and shortness of breath. Which of the following procedures should the nurse anticipate for this client?

Rationale: A. This is a surgical procedure for hypertrophic obstructive cardiomyopathy, not atrial fibrillation. It is unrelated to managing AF or symptomatic palpitations. B. This procedure is used for continuous drainage of pericardial effusions or cardiac tamponade, not for treating atrial fibrillation. C. This is the treatment of choice for symptomatic atrial fibrillation with rapid ventricular response when medication is insufficient or immediate rhythm control is needed. The procedure delivers a controlled electrical shock synchronized with the QRS complex to restore normal sinus rhythm safely. D. This is used to remove excess fluid from the pericardial sac in cases of pericardial effusion or tamponade, not for atrial fibrillation management.