Equine Mean Arterial Pressure Explained

Learn the formula, clinical use and limitations of the equine mean arterial pressure.

Estimates mean arterial pressure from systolic and diastolic arterial pressures.

Formula

value = (systolic + 2*diastolic)/3

What this calculator does

Estimates mean arterial pressure from systolic and diastolic arterial pressures.

Clinical use

This common approximation is least reliable when heart rate or waveform morphology is markedly abnormal.

Important limitations

When an arterial monitor provides directly integrated MAP, prefer the monitor value after confirming setup and waveform quality.

References

  1. Use current equine medicine references, local protocols and patient-specific veterinary judgement.

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