Obstetrics · Emergency Medicine
Obstetric Shock Index for Postpartum Hemorrhage calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Apply to women with postpartum hemorrhage ≥1500 mL. The source used the highest heart-rate/systolic-pressure ratio measured within the first hour after PPH; resuscitative measures could have influenced measurements.
Result
Complete all required inputs to calculate the score.
Formula inputs
- Heart rate (beats/min)Accepted range: 1 to 300
- Systolic blood pressure (mm Hg)Accepted range: 1 to 300
Primary source
Nathan HL et al. Shock index: an effective predictor of outcome in postpartum haemorrhage? BJOG. DOI: 10.1111/1471-0528.13206. PMID: 25546050 (2015)
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