Medscape

ECG Challenge: Her Annual Physical Is Normal, Except the ECG

The diagnosis is normal sinus rhythm, atrial bigeminy, first-degree atrioventricular (AV) block (prolonged AV conduction), and right bundle branch block (RBBB). The rhythm is slightly irregular, with ...
Healio

Miscellaneous ECG 35

This rhythm strip shows 1:1 conduction of sinus P waves with a normal PR interval at a rate of about 82 beats per minute (RR = 0.72 sec). After the fourth beat there is an isoelectric baseline with no ...
Healio

PR Interval

The time from the beginning of the P wave, indicating atrial depolarization, to the beginning of the QRS complex, representing ventricular depolarization, is the PR interval. This represents the time ...
Medscape

ECG Challenge: Abdominal Pain and Diarrhea in a Heart Disease Patient

The correct diagnosis is sinus rhythm, LVH, and normal T waves (Figure 2). The ECG shows a normal P wave (+) before each QRS complex with a stable and normal PR interval and a stable PP interval with ...