Comparative study of stressed and nonstressed antepartum fetal heart rate testing.


During an 18-month period 1328 nonstress tests (NST) and sequential contraction stress tests (CST) were performed on 566 patients. The criterion for reactivity was at least 2 accelerations associated with fetal movement during 20 minutes. The last test performed within 1 week of delivery was compared with perinatal outcome. A total of 1118 (84.2%) NSTs were… (More)


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