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. 1989 Mar;62(3):316-8.
doi: 10.1093/bja/62.3.316.

Maternal oxygenation during normal labour

P N Reed  1 , A D Colquhoun, C D Hanning
Affiliations
Free article

Maternal oxygenation during normal labour

P N Reed et al. Br J Anaesth. 1989 Mar.
Free article

Abstract

Arterial oxyhaemoglobin saturation (SaO2) was monitored continuously during normal labour in 33 healthy parturients receiving pethidine and nitrous oxide for analgesia. Sixteen (49%) had episodes exceeding 10 s duration when SaO2 was less than 90% (mean 83.7%, range 89-60%). Two women had multiple episodes of profound hypoxia with SaO2 less than 70%.

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