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Review Question - QID 102958

Multifocal Atrial Tachycardia Treatment Medical QID: 102958 (M3.CV.16.17)
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QID 102958 (Type "102958" in App Search)
A 60-year-old man with known history of chronic obstructive pulmonary disease is brought by ambulance to the emergency department due to shortness of breath. He is out of breath and cannot string a sentence together. The emergency technician suggests that the man tried his tiotropium inhaler multiple times without success. The patient's vitals are as follows: afebrile, BP 90/60, HR 120, RR 24. Oxygen saturation is 86%. An EKG is obtained that shows narrow-complex tachycardia with irregular P waves preceding each QRS complex and irregular PR intervals. What is the best next step in management?
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