ECG Lead System Updated Version.

ECG Lead System Updated Version.Electrocardiogram (ECG)ANSWER - Since you can't see the heart beating we use a ECG to provide a picture that replicates the actual cardiac issue. Myocardial Infraction (MI)ANSWER - Heart Attack -Have abnormal rhythms. -Death of cardiac muscle due to ischemia Doe the ECG machine monitor or control the hearts rhythm?ANSWER - Only monitors Straight line when machine is turned on but not connected to the patientANSWER - Isoelectric = no current It is straight because there is a balanced electrical force field. This Isoelectric line acts as a starting point for the patterns to be displayed ECG PatternANSWER - Upward Pattern: electricity flowing from the heart to the electrodes moving to the positive electrode Downward Pattern: electricity flowing from the heart to the electrodes moving away from the positive electrode Where should you put electrodes ?ANSWER - 1. Close to bone 2. Over soft tissue Where should you NOT put electrodesANSWER - 1. Thick muscles 2. Skin Folds 3. Bony prominence's they can cause ECG artifacts that take away from the reading LeadsANSWER - recordings of heart activity from several angles around the heart (like adjusting the view for your camera) Lead 1ANSWER - right arm (-) to left arm (+) -positive deflection of ECG tracings -helpful in monitoring atrial rhythms and hemi blocks Lead 11ANSWER - right arm (-) to below the last left palpable rib, below the midclavicular line(+)