The test, carried out on blood taken from the umbilical cord immediately after lineage, measures its acidity (the pH level). Blood with a low pH (more acid) indicates a lack of oxygen at beginning, which is the commonest cause of knowledge damage, cerebral palsy and death.
Current guidelines suggest that measuring the pH level of umbilical cord blood is worthless as a predictor of how the cosset will fare, because the society is inconsistent. But doctors based in Birmingham reviewed 51 studies involving almost 500,000 babies and found a low pH in the cord blood was strongly linked with serious outcomes.
Based on their findings, published in the British Medical Journal, they call for increased surveillance of babies born with low cord blood pH and for further research to explore the cost effectivenees of doing the test on all babies.
In an accompanying editorial, James Neilson, professor of obstetrics and gynaecology at the University of Liverpool, said: "We should aim to reduce the number of babies born with a low cord pH, without increasing unnecessary obstetric intervention."
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