Your client was admitted for shortness of breath. A 6 second rhythm strip of their telemetry is seen here. You anticipate that the physician might order what medication to treat this dysrhythmia?

A. Nitroglycerin: This vasodilator is used to treat anginal chest pain by reducing preload and dilating coronary arteries. It has no role in the management of atrial fibrillation, which is characterized by an irregularly irregular rhythm. Using a nitrate here would not address the underlying electrical disorganized activity in the atria. B. Hydrochlorothiazide: As a thiazide diuretic, this medication is used primarily for the long-term management of hypertension and mild fluid retention. It does not possess any antiarrhythmic properties and would not be effective in controlling the ventricular rate. Diuretics are not the standard of care for treating an acute rhythm disturbance on a telemetry strip. C. Atropine: This anticholinergic agent is indicated for the treatment of symptomatic bradycardia by increasing the heart rate. Atrial fibrillation often requires rate control to prevent tachycardia-induced cardiomyopathy rather than stimulation of a faster rate. Atropine could potentially worsen the clinical situation by causing a dangerously rapid ventricular response. D. Warfarin: Atrial fibrillation causes blood to pool in the atria, which significantly increases the risk of mural thrombus formation and subsequent embolic stroke. Anticoagulation is a mandatory component of management to prevent these life-altering thromboembolic complications. Warfarin is a standard oral anticoagulant used to maintain a therapeutic INR in patients with this chronic dysrhythmia.