Moving to the morphology criteria when a right bundle pattern is present, there is no reversal of the RR' pattern in V1 (there is no RR' pattern at all), but there is a monophasic R wave in lead ...
Simply use calipers to measure the distance between the R wave and the S wave in each precordial ... VT is present in the following situations: A monophasic R or biphasic qR complex in V1.