Missouri EKG expert witnesses interpret electrocardiograms and cardiac monitoring data to clarify rhythm, ischemia, and conduction findings. They are often cardiologists, electrophysiologists, or emergency physicians from settings like Barnes-Jewish Hospital and Washington University–affiliated practices. In Missouri’s mix of urban and rural care, they assess triage, telemetry oversight, and diagnostic accuracy. They commonly evaluate missed MI, arrhythmia management, QT prolongation, and device-related tracings.