I'll tell you what though, as morbid as it sounds, watching a failing heart on the monitor has been one of the most intriguing experiences in the ED, and got me interested in electrophysiology. Hoping to do some more studying this summer and pick myself up on EKGs a bit after finals. We were holding patients in the ED due to a full house up stairs, so one of our crash rooms was occupied by a terminally ill geriatric patient that was essentially brought to us to die. I checked her monitor every 10-15 minutes as I could, watching her go in and out of idiopathic until it stuck and got slower and slower. It is just absolutely mind blowing that the physics can be measured, and you can explain what is happening and where with that measurement.