sir my ECG is showing 800: Sinus Rhythm Normal ECG. The Parameters are as follows HR : 66 bpm, P Dur : 86 ms, PR int : 135 ms, QRS Dur : 110 ms, QT/QTC int : 367/386 ms P/QRS/T axis :8/-14/-2, RV5/SV1amp : 0.994/0.731 mV RV5+SV1 amp : 1.725 mV RV6/SV2 amp : 1.063/1.201 mV