The combination of these sensors and contact points yield the six classic frontal leads of a full 12-lead ECG: leads I, II, III, aVL, aVR, and aVF. This is accomplished, AliveCor points out ...

This P wave is negative in leads II and aVF and positive in lead aVR. Therefore, this is not a sinus P wave. ... ECG Challenge: Cardiomyopathy and an Irregular Pulse - Medscape - Feb 12, 2018.

Because it is negative in lead aVF, it is coming from either the atrioventricular (AV) node (ie, ... Cite this: ECG Challenge: Intense Chest Pain and Irregular Pulse - Medscape - Aug 20, 2020.

The ECG findings of an old myocardial infarction are Q waves, specifically for an inferior MI, Q wave in leads II, III, and aVF.

It can record heart activity on six different leads at once (I, II, II, aVL, aVR and aVF). ... although it's still not the same as a 12-lead ECG like you'd get from a cardiologist.

HeartBeam Granted Patent for 12-Lead Electrocardiogram (ECG) Patch Monitor Intended for Detection of Heart Attacks and Complex Cardiac Arrhythmias ...