ABSTRACT
A Limb leads. When the R waves in lead I plus the S wave in lead
III measure over 25 mm. When the R wave in aVL is over 11 mm
or over 20 mm in aVF. Also when the S wave in aVR is greater
than 14 mm.
B Precordial leads. When the R wave in leads V5 or V6 plus the
S wave in V1 measure over 35 mm. When the tallest R wave plus
the tallest S wave measure over 45 mm, or when the R wave in
V5 or V6 is greater than 26 mm.
