Ventricular tachycardia (V-tach or VT ... generates electrical impulses, called the sinus node. With VT, the heart rate is most commonly around 150 to 250 beats per minute (bpm).

Sinus tachycardia is indicated on ECG with a normal upright P wave in lead II preceding every QRS complex (indicating that the pacemaker is coming from the sinus node and not elsewhere in the ...