omSOFA (Obstetric SOFA)
Six organ systems, 0–2 points each, using thresholds adjusted for pregnancy. Use the worst value in the period you are assessing.
Cardiovascular support
Conscious level
Fill in every field to see the score.
Scoring table
| Parameter | 0 | 1 | 2 |
|---|---|---|---|
| PaO₂/FiO₂ (mmHg) | ≥ 400 | 300 to < 400 | < 300 |
| Platelets (×10⁹/L) | ≥ 150 | 100 to < 150 | < 100 |
| Bilirubin (µmol/L) | ≤ 20 | > 20 to 32 | > 32 |
| MAP (mmHg) | ≥ 70 | < 70 | Vasopressors required |
| Conscious level | Alert | Rousable by voice | Rousable by pain |
| Creatinine (µmol/L) | ≤ 90 | > 90 to 120 | > 120 |
Normal pregnancy raises the heart rate, respiratory rate and white cell count and lowers the BP slightly, so early sepsis is easy to miss. See the maternal sepsis note for red flags, the hour-1 bundle and antibiotic choices.
Show formula
Sum of six organ systems, 0–2 each (total 0–12): PaO₂/FiO₂, platelets, bilirubin, MAP or vasopressors, conscious level, creatinine.
An acute rise of ≥ 2 points with suspected or confirmed infection = obstetric sepsis.
Sources
- Obstetrical and Gynaecological Society of Malaysia (OGSM). Handbook of Obstetric Emergencies (ICOE).
- Obstetric Life Saving Skills (OLSS) lectures, Hospital Sultan Haji Ahmad Shah (HOSHAS), Temerloh, 2026.