Obstetrics · Maternal-Fetal Medicine · Critical Care
National Partnership Maternal Early Warning Criteria calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Result
Complete all required inputs to calculate the score.
Formula inputs
- Systolic blood pressure (mmHg)Accepted range: 30 to 300
- Diastolic blood pressure (mmHg)Accepted range: 10 to 200
- Maternal heart rate (/min)Accepted range: 0 to 300
- Respiratory rate (/min)Accepted range: 0 to 100
- Oxygen saturation on room air at sea level (%)Accepted range: 50 to 100
- Urine output <35 mL/hour for at least 2 hours
- Maternal agitation, confusion, or unresponsiveness
- Preeclampsia with non-remitting headache or shortness of breath
Primary source
Mhyre JM et al. The maternal early warning criteria: a proposal from the National Partnership for Maternal Safety. Obstet Gynecol (2014)
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