Example Heart Chart
These tracings are recorded simultaneously from a healthy 15 y.o. male "P.J." at the MCC Paramedic Lab:

- Chart speed = 25 mm/sec.
- ECG Lead I, Gain = 1 mV/cm, Frequency response = 0.05 - 100 Hz
- Phonocardiogram at Erbs point, Frequency response = 10 - 200 Hz
- Plethsmogram = Non-invasive, right index finger.