A Guide to Reading and Understanding the EKG

The EKG waveform comes from a measurement of surface voltages ... V1-V2 are over the right ventricle, while V4-V6 primarily are over the left ventricle. V3 is a ... As the ventricles, the atria can also become hypertrophic (dilated), which is visualized as changes to the P-wave. The P-wave can become biphasic in bilateral atrial hypertrophy. ................
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