Atrial and ventricular hypertrophy
Normal ECG values : Prong P < 2.5 mm height, 0.05 – 0.11 sec. duration.» P is positive in lead II.» The height of P should not exceed the height of T in the same lead.» P can be biphasic in III, aVL, V1 Galery Important notes : » If the speed is 50 mm/sec; 1 mm = 0.02 sec» If the speed is 25 mm/sec; 1 mm = 0.04 sec Atrial hypertrophy characters Right atrium hypertrophy Overload by pressure or volume • Prong P is high (>2.5 mm) and pointed in II, III,