Cardiology Specialists of Orange County Saving one Heart at a Time...We don't miss a beat!     Search for: Back to Labs and Tests Event Monitoring An Event Monitor is an ambulatory ECG that records the electrical activity of the heart for 30 consecutive days.  This testing is extremely helpful in assessing irregular heart activity including atrial fibrillation, tachyrrhtymias and bradyrrhythmias.   Two ECG electrodes are placed on the patient’s chest and the monitor is activated.  Upon symptoms, the patient pushes a button to activate the monitor and transmits the tracing via telephone to the monitoring station.  At the end of the 30-day monitoring period the patient mails the monitor back to the monitoring station.  The initial hook up and enrollment for the event monitor is approximately 15-20 minutes.    All Content © 2005 Cardiology Specialists of Orange County