Post op cardiac patient had this rhythm in the ECG trace in the monitor. Its ventricular Bigeminy. One can see each normal beat is alternating with a ventricular premature complex (VPC). If you see the arterial line trace below it, during the VPC there is no effective contraction as shown by very small amplitude arterial waveform :) | Medical Snippet

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Premature Ventricular Contraction (PVC) Single ectopic beats, often benign - Bigeminy → Every other beat is a PVC - Trigeminy → Every third beat is a PVC Ventricular Tachycardia (VT) - NSVT → 3 consecutive PVCs, stops on its own (