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Resp 16 III

Electrocardiograms Waves

P wave represents atrial depolarization (contraction)
QRS complex represents ventricular depolarization and atrial replarization
T wave represents ventricular repolarization
Q wave represents conduction of impulse down the interventricular septum
U wave represents repolarization of bundle of HIS and purkinje fibers
PR interval begining of P wave to begining of QRS (.12-.2 secs)--- increase indicates 1st degree heart block
PR segment end of P to beginning of QRS
QRS interval same as QRS complex it is .1 sec or less an increase indicates bundle branch block
ST segment end of S to beginning of T
Created by: TnJFarrington12