| pH range | lactate range (mmol/L) | interpretation | action |
|---|---|---|---|
| >7.25 | <4.2 | normal |
Observe Repeat in 1-2h p.r.n. |
| 7.20 - 7.25 | 4.2 - 4.8 | pre-acidotic | Repeat in 20 -30 min |
| 7.16 - 7.19 | 4.9 - 5.6 | acidotic | Deliver - category 2 |
| <=7.15 | >= 5.7 | severely acidotic | Deliver - category 1 |
References:
1. Nordstrom, L. Fetal scalp and cord blood lactate. Best Practice & Res Clin Obstet Gyn 2004;18(3):467-476
2. Fetal Surveillance Education Programme (RANZCOG)