Moored Name Meaning Historically, surnames evolved as a way to sort people into groups - by occupation, place of origin, clan affiliation, patronage, parentage, adoption, and even physical characteristics (like red hair).
The QRS complex is a name for the combination of three of the graphical deflections seen on a typical electrocardiogram (EKG or ECG) .It is usually the central and most visually obvious part of the tracing. It corresponds to the depolarization of the right and left ventricles of the human heart.ny abnormality of conduction takes longer and causes widened QRS complexes. In bundle branch block, there can be an abnormal second upward deflection within the QRS complex, in this case such a second upward deflection is referred to as R' (pronounced R prime). This would be described as an RSR' pattern.
It is measured from the beginning of the QRS complex to the end of the T wave. At a heart rate of 70 beats per minute it is usually about 0.35 seconds in duration, but the duration of the QT interval is very heart rate dependent. The lower the heart rate is, the longer the QT interval.or example if there is 0.6 seconds between beats, and there are 60 seconds per minute, then the heart rate would be 100 beats per minute [(60 sec/minute / (0.6 sec/beat)]. The RR interval is measured from the peak of one QRS complex (R wave) to the peak of the next QRS complex.