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The mean arterial pressure (MAP) is a term used in medicine to describe a notional average blood pressure in an individual. It is defined as the average arterial pressure during a single cardiac cycle.
is usually small enough to be neglected in this formula.
MAP = [(2 x diastolic) + systolic] / 3
where is the pulse pressure,
At high heart rates is more closely approximated by the arithmetic mean of systolic and diastolic pressures because of the change in shape of the arterial pressure pulse.
It is believed that a that is greater than 60 mmHg is enough to sustain the organs of the average person.
If the falls significantly below this number for an appreciable time, the end organ will not get enough blood flow, and will become ischemic.
See also Edit
- ↑ Cardiovascular Physiology Concepts: Mean Arterial Pressure, Richard E. Klabunde, Ph.D
- ↑ Physiology at MCG 3/3ch7/s3ch7_4
- ↑ http://www.nda.ox.ac.uk/wfsa/html/u10/u1002_03.htm
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