dogman25

Hello, I am asking this question in reference to a traditional 3-lead ECG/EKG setup, where the leads are located at the RA, LA, and LL positions. How much can you vary the placement of the RA, LA, and/or LL leads and still get an accurate Lead I/II/III signal? For example, I know that many systems will place the "LL" lead in the left abdominal region instead of actually on the "left leg" and still produce a reliable signal. But what if the LL lead is placed more to the left, or more to the right? What tolerance is there for these variations in placement?