Christiana A. Iyasere

EKG: PR Interval Abnormalities I. Problem/Condition. The normal PR interval is from 0.12-0.2 seconds and is measured on the EKG from the beginning of the P wave to the beginning of the QRS complex. This interval represents the onset of atrial depolarization to the onset of ventricular depolarization and consists of: -Atrial depolarization -Electrical conduction…

I. Problem/Condition. The normal QT interval is measured from the beginning of the QRS complex to the end of the T wave and represents the time required for both ventricular depolarization and repolarization. The upper limits of the normal QT interval are determined by the heart rate; as a result the QT corrected for heart…