Cardiovascular Critical Care I

Developed by Erik Abel, PharmD, BCPS

A single lead of an ECG tracing is a summative representation of the action potentials occurring from

a single cell, facilitating myocardial conduction, contraction, and relaxation.

Conduction abnormalities within specified leads may indicate perfusion defects in some clinical

scenarios (i.e., acute coronary syndromes [ACS]).