Case 30: ECG

1. Which of the following abnormalities is present on this ECG?

Atrial premature complex

First-degree AV block

One premature ventricular complex (PVC)

Ventricular tachycardia

2. The morphology of the PVC is most consistent with origin from which chamber?

Left ventricle

Right ventricle

Left atrium

Right atrium

3. What is the approximate heart rate (depolarizations/min)?

80 depolarizations/min

150 depolarizations/min

200 depolarizations/min

300 depolarizations/min

4. What diagnostic test should be performed next?

Cardiac catheterization

Repeat echocardiogram

Holter monitor

Thoracic CT scan

Case 30 — Electrocardiogram (ECG)