EBM 501 Lesson 2: Electrocardiography, Group Presentation

Group presentation on the electrocardiogram: the cardiac cycle and the electrical events behind the trace, the three planes of the body and the leads placed with regard to them, the standard twelve-lead arrangement, the analog recorder with its preamplification and recording unit and its lack of opto-isolators, and the modern preamplifier board with its stepper motor chart drive, opto-isolated amplifier and diathermy filter.