The axis of the ECG is the major direction of the overall electrical activity of the heart. ... (R for right arm) is at +30 degrees; the positive of lead aVR is actually at -150 degrees.

The Normal ECG. A normal ECG contains waves, intervals, segments and one complex, as defined below. Wave: A positive or negative deflection from baseline that indicates a specific electrical event ...

Partho Sengupta, MD (Robert Wood Johnson University Hospital, Rutgers Robert Wood Johnson Medical School, New Brunswick, NJ), said demonstration of the accuracy of the AI-ECG approach for detecting ...

The KardiaMobile 6L can record six EKG leads, including I, II, III, aVL, aVR, and aVF. Each lead measures the electrical activity of the heart from different perspectives.