A 40 year old man was admitted to the hospital emergency with sudden onset of the symptoms and signs of severe left ventricular failure. Calculate the atrial rate of the patient.
100/min
150/min
200/min
300/min
Ventricular rate : 1500/10 = 150 ECG shows HR of 150/min with normal axis. Saw tooth waves are noted with 2:1 AV block. Ventricular rate is 150/min therefore the atrial rate would be 300/min.
ECG and Arrhythmia 2