A 70-year-old male with a permanent pacemaker presents with syncope. His heart rate is 30 bpm and he is hypotensive. His ECG shows no pacing spikes despite the pacemaker being in situ. What has most likely occurred?APacemaker failure - the device is not generating pacing impulses; possible causes include battery depletion, lead fracture, or lead displacementBElectromagnetic interference has permanently deactivated the pacemakerCThe ECG machine is malfunctioningDThe patient has a supraventricular tachycardia that the pacemaker is correctly suppressingEThe pacemaker is functioning normally - the rate of 30 bpm is appropriateCheck my answer