(ECG or EKG) PR interval part 3

Описание: In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200ms in duration.

EKG Rhythm Strips part 1:    • (ECG or EKG) Rhythm Strips part 1  

EKG Wave patterns part 2:    • (ECG or EKG) Wave patterns. Part 2