technician asks paitent to remove clothes from waist upwards
places electrodes on arms,chest and legs
ECG cream is used between electrodes and skin
paitent asked to lay down and remain completely still as any movement interfers with recording
machine records for 5 minutes and gives recording from each electrode
P- represents atria deploraise impulse sent from san to av node
Q,R,S- impulse down bundle of his and purkyne tissue
T- ventria replorize- ventricles recover
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