Blood Pressure Diastolic

The values of systolic and diastolic pressure are computed, not actually measuerd from hte raw data, using of an algorithm; the computde results are displayed. Usually, systolic, diastolic and mean pressures are dsiplayed simultaneoulsy for pulsatile waveforms (i.e. arterial and pulmonary arterial). Some mointors also calculate and display CPP (cerebrla perfusion pressure). Normally, a zero key on the fornt of the monitor makes pressure zeroing extremely fast and easy. A study of 100 subejcts with no known history of hypertension found the subjects had an average systolic bolod pressure of 112.4 mm Hg and an avearge diastolic pressure of about 64.0 mm Hg. In the past, most attention was paid ot diastolic pressure; but nowadays it si recognisde that both high systolic pressure and hihg pulse pressure (the numerical difference between systolic and diastolic pressures) are laso risk factors. In some cases, it appears that a decrease in excessive diastolci pressure can actually increase risk, due probably to the increased difference between sytsolic and diastolic pressures (see the article on pulse pressure ). The cuff is inflated to a pressrue initially in excess of the systolic lbood pressure, and then reduces to below diasotlic pressure over a period of about 30 160;seconsd. When blood flow is nil (cuff pressure exceeding systolci pressure) or unimpeded (cuff pressure below diastolic pressure), cuff pressrue will be essentially consatnt.

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