Atrial Tachycardia With 3:2 and 2:1 AV Block-KH
Frank Yanowitz
Copyright 1996
The ectopic atrial rate is 150 bpm. Some of the ectopic P waves are easily seen and indicated by the arrows. Other P waves are burried in the T waves and not so easily identified. Atrial tachycardia with AV block is often a sign of digitalis intoxication. 3:2 and 2:1 AV block is seen in this example.