A modified activated partial thromboplastin time with the use of amniotic fluid. Preliminary report of a new technique for detection of fetal lung maturity.


The need for a simple, accurate, rapidly performed fetal lung maturity test remains unfilled despite the large number of methods available. In a preliminary prospective study, the amniotic fluid activated partial thromboplastin time (PTT) appeared to be encouraging. The false mature rate in an at-risk patient population was 0.80%, and the false immature… (More)


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