Abstract
Patients (25) reporting a marked diminution in fetal activity at term in otherwise normal pregnancies were compared with 25 controls, matched for age, parity and other factors, in whom movements were reported to be vigorous. Fetal well-being was assessed by maternal serum human placental lactogen concentration, maternal urinary estriol excretion and fetal scalp blood acid-base values and Hb concentration. Fetal biologic maturity was assessed by liquor creatinine concentration, percentage of orange cells on Nile blue staining and shake testing. The 2 groups of patients showed no difference in fetoplacentral well-being or degree of fetal biologic maturity.