ELEVATION OF MATERNAL SERUM MYOGLOBIN CONCENTRATIONS DURING DELIVERY

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Abstract
Summary: Serum myoglobin was determined by radioimmunoassay in 32 women immediately after delivery, in the umbilical cord blood of 30 newborn infants, in 18 women in the third trimester of pregnancy and in 24 healthy non‐pregnant women. In maternal blood following delivery there was a 3 to 10 fold rise in serum myoglobin concentration (mean ± SD = 117·2 ± 82·5 ng/ml). On the other hand, in umbilical cord blood and in late pregnancy, serum myoglobin concentrations did not differ from those in healthy non‐pregnant women (mean ± SD = 23·6±12·6 ng/ml).