V4
R-wave amplitude in V4 · age-dependent fitted limits
Cardiology.org · ECG reference model
Select sex and enter age to calculate fitted 1st, 2nd, 98th, 99th percentiles for precordial R-wave amplitudes V4, V5 and V6.
R-wave amplitude in V4 · age-dependent fitted limits
R-wave amplitude in V5 · age-dependent fitted limits
R-wave amplitude in V6 · age-dependent fitted limits