Open AccessPH Measurement from the Fetus During Labor A Task for the Midwife?
Author(s) -
Löfgren Olof
Publication year - 1984
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016348409154667
Subject(s) - medicine , fetus , sampling (signal processing) , blood sampling , acidosis , obstetrics , fetal monitoring , fetal heart rate , surgery , anesthesia , pregnancy , heart rate , blood pressure , genetics , filter (signal processing) , computer science , computer vision , biology
. After theoretical education on the development of fetal acidosis and the fetal blood sampling technique, 12 midwives in a training program carried out or assisted in 40 fetal blood sampling procedures. Sampling was possible at a cervical dilatation of 1.5 cm. 11/12 midwives were successful in their first sampling attempt. The instrument used for analysis was an automated microprocessor device with a minimum sampling volume of 15 μl of blood. There was a statistically highly significant correlation between the results obtained with the instrument tested and the reference device (r = 0.9; n = 36). 82% of the measurements fell within ±0.04 pH units of the reference device. With the instrument placed in the labor room, and using the current technique with very small blood samples, it is possible to obtain a fetal pH value within 10 minutes after the development of a pathological fetal heart rate pattern.