Mean Arterial Pressure (MAP) Calculator
Calculates Mean Arterial Pressure, Pulse Pressure, and Cerebral Perfusion Pressure (CPP) with heart-rate compensation for critical care resuscitation and vasopressor titration.
Interactive MAP & CPP Calculator
Achieves standard clinical resuscitation targets (Surviving Sepsis Campaign ≥ 65 mmHg). Adequate autoregulated cerebral, coronary, and renal perfusion pressure.
Clinical Organ Perfusion Tiers & Hemodynamic Targets
| MAP Range | Perfusion Status | Clinical Action & Hemodynamic Mandate |
|---|---|---|
| < 60 mmHg | Critical Hypoperfusion | Inadequate renal and coronary perfusion. High risk of acute tubular necrosis (ATN) and myocardial ischemia. Urgent IV fluids / vasopressors (Norepinephrine). |
| 60 – 64 mmHg | Borderline / Sub-Target | Marginal organ perfusion. Titrate vasopressors to achieve Surviving Sepsis goal of ≥ 65 mmHg. |
| 65 – 100 mmHg | Optimal Perfusion Range | Surviving Sepsis Campaign resuscitation target. Preserves autoregulated cerebral, renal, and mesenteric perfusion without excessive afterload. |
| 101 – 110 mmHg | Mildly Elevated | Elevated left ventricular workload. Wean vasopressors if patient is on hemodynamic support. |
| > 110 mmHg | Severe Hypertension / Crisis | Marked elevation. Risk of acute coronary syndrome, aortic dissection, or hemorrhagic stroke. Evaluate for target organ damage. |
Physiological Basis: Why MAP is Not a Simple Average
At resting heart rates (60–90 bpm), the cardiac cycle spends approximately one-third (33%) in systole and two-thirds (66%) in diastole. Because blood vessels spend twice as long exposed to diastolic pressure, diastole is weighted double in the standard formula:
Companion ICU & Critical Care Tools
In critically ill patients with an indwelling arterial catheter, electronic transducer pressure integration provides real-time area-under-the-curve MAP. For non-invasive oscillometric cuffs, the cuff algorithm estimates MAP at the point of maximum pulse amplitude oscillation.