Merck Manual

Please confirm that you are a health care professional

honeypot link
ECG, atrial flutter, dog
ecg-atrial-flutter-dog-kittleson-sized
ECG, atrial flutter, dog

    This ECG shows atrial flutter in a dog. The atrial rate is steady at 440 bpm. Every 4th to 7th atrial depolarization (P wave) gets through the AV node to generate ventricular depolarization (QRS complex).

Courtesy of Dr. Mark D. Kittleson.