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NORMAL VALUES FOR FETAL SCALP TISSUE pH DURING LABOUR
Author(s) -
Weber T.,
HahnPedersen Suzanne
Publication year - 1979
Publication title -
bjog: an international journal of obstetrics and gynaecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.157
H-Index - 164
eISSN - 1471-0528
pISSN - 1470-0328
DOI - 10.1111/j.1471-0528.1979.tb11275.x
Subject(s) - scalp , medicine , apgar score , anesthesia , fetus , obstetrics , surgery , pregnancy , biology , genetics
Summary Normal values for fetal scalp tissue pH during labour were determined by using a glass electrode (Kontron‐Roche®). A total of 132 recordings was obtained and 84 (64 per cent) were of good quality. After a good quality recording had been obtained, there were 64 infants with an Apgar score of 9 or 10 at one and five minutes after delivery. The 64 recordings showed pH values (Mean ± 2SEM) of 7.38±0.12 six hours before delivery and 7.28±0.12 at the time of delivery. Between the 5th and 55th minutes of the second stage of labour the pH (Mean ± 2SEM) fell from 7.30±0.14 to 7.20±0.13.