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Mean Arterial Pressure (MAP)

Mean arterial pressure — the average pressure driving perfusion to vital organs

Emergency
📄Magder S (2006). Crit Care Med.
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Clinical reference only. Not a substitute for professional medical judgment. Verify all results against institutional protocols before clinical use.

Calculate

MAP targets vary by clinical context (sepsis: ≥65 mmHg; TBI: ≥80 mmHg; post-cardiac arrest: ≥65–70 mmHg). Interpret clinically.

Formula

MAP = (SBP + 2 × DBP) / 3
SBPSystolic blood pressure (mmHg)
DBPDiastolic blood pressure (mmHg)

When to Use

ICU/emergency monitoring, septic shock management, TBI management, post-resuscitation care, hypertensive emergency assessment.

Clinical Pearls

  • •Sepsis Surviving Campaign target: MAP ≥65 mmHg in septic shock.
  • •Traumatic brain injury (TBI): MAP target ≥80 mmHg to maintain cerebral perfusion pressure.
  • •Post-cardiac arrest: MAP 65–75 mmHg, avoid both hypotension and excessive hypertension.
  • •MAP is a better indicator of perfusion than systolic BP alone — reflects true driving pressure.

Original Publication

Magder S (2006). Crit Care Med.

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