Mean arterial pressure
NCLEX-RN glossary · Physiological Adaptation
Definition
A derivation calculated as [Systolic Blood Pressure + (2 x Diastolic Blood Pressure)] / 3.
Mean arterial pressure in plain English
The primary indicator of organ perfusion pressure; critical in the management of shock states and hypertensive crisis. The tempting mistake is relying on systolic blood pressure when the mean pressure indicates inadequate tissue perfusion.
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