Dr. diamond purchased an older multi channel ECG machine for the office because she needs an occasional ECG done on a patient the machine does not have a module to interpret the ECG so Dr. Dimon has requested that you complete a quick visual heart rate and circle any irregular rhythm before giving the ECG to her for her interpretation the machine prints out a 10 second ECG with lead to at the bottom explain how you would compute a visual atrial heart rate and ventricular heart rate how would you determine if the heart rhythm is normal or irregular