A 52-year-old male with a history of hypertension presents with exertional chest pain. He undergoes a treadmill stress test. Below is a snapshot from the ECG during exercise.

How many PVCs do you see in this 12-lead EKG strip?

[[sd_correct]]

E

[[/sd_correct]]

[[sd_short]]

There are 4 PVCs in this tracing.

[[/sd_short]]

[[sd_long]]

This case demonstrates the concept of "fusion". Please view explanatory video for more details.

[[/sd_long]]

[[sd_lumi]]

https://app.lumi.education/api/v1/run/wrhA8A/embed

[[/sd_lumi]]