Rhythm Interpretation第 31 / 100 题
A strip shows a normal sinus beat followed by a wide bizarre beat, then another sinus beat followed by another wide bizarre beat, repeating throughout the strip. What is this pattern called?
a.Ventricular bigeminy
b.Ventricular trigeminy
c.A couplet
d.Ventricular tachycardia
解析
Bigeminy means every other beat is a premature ventricular contraction, alternating one normal beat and one PVC. Trigeminy is a PVC every third beat. A couplet is two PVCs in a row, and three or more consecutive PVCs at a rate above 100 constitute ventricular tachycardia.
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