NCIt definition : The mean pressure of the blood within the arterial circulation. The arterial pressure
may be directly measured by insertion of an intra-arterial catheter connected to a
transducer. The mean arterial pressure (MAP) can be calculated by subsequent analysis
of the waveform. MAP can be approximated without an invasive procedure using the following
formula: diastolic pressure plus 1/3 of the pulse pressure, where pulse pressure is
systolic pressure - diastolic pressure.;
Alternative definition : CDISC: The mean pressure of the blood within the arterial circulation.;