Doctaverse
Cardiology

Mean Arterial Pressure (MAP)

Estimates mean arterial pressure from systolic and diastolic blood pressure.

Written for clinicians. If you're a parent or patient, don't act on these numbers — talk to your child's doctor.

Inputs

FieldUnitNotes
Systolic BP mmHg 30–300
Diastolic BP mmHg 10–200

FAQ

What is the Mean Arterial Pressure (MAP)?

Estimates mean arterial pressure from systolic and diastolic blood pressure.

What inputs does the Mean Arterial Pressure (MAP) need?

Systolic BP (mmHg), Diastolic BP (mmHg).

Related guides

Mean Arterial Pressure (MAP): The DBP + ⅓(SBP − DBP) Estimate

MAP estimates the average perfusion pressure across the cardiac cycle — MAP = DBP + ⅓(SBP − DBP). The formula, why diastole is weighted, a worked example, and pediatric norm caveats.

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Pediatric Echo Z-Score (Pettersen)

Body-surface-area-normalized z-score for cardiac structures from the Pettersen (Detroit) regression model.

Left Ventricular Fractional Shortening (FS)

Echocardiographic index of left-ventricular systolic function from M-mode dimensions.

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