Jason's Blog: ECG Challenge of the Week for Nov. 4th - 18th.

This is a "Routine" resting 12-lead ECG I performed on a patient several months ago in the Outpatient ECG Lab.

PATIENT CLINICAL DATA:
72-year-old white man; asymptomatic; resting comfortably in recumbent position.

This is an exercise in "anomalous" beats.

QUESTION:
(1.)  Specifically, what are 3rd, 4th, and 10th beats?

You may wish to review another ECG that I performed I few years ago:  http://www.ekgguru.com/content/sr-ectopy-pac-non-cond-pac-pvc-ventricular-escape-laddergram