oving to another question will save << Question 11 of 90 > Question 11 0.5 points A 76-year-old male has suffered from atrial fibrillation for many years. This condition has been

under good control with amiodarone and diltiazem until recently, when he started experiencing palpitations and came back to see his physician. He decides to start the patient on ibutilide therapy. How does this medication work? O a. It blocks potassium channels and prolongs repolarization O b. It lowers intracellular calcium O c. It decreases stroke volume and cardiac output Od. It diminishes elimination f sodium and water Oe. It increases vagal activity and decreases sympathetic tone Save Answer