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384 D. Maulik, R. Figueroa<br />

domized to either umbilical artery Doppler studies or<br />

nonstress testing as a screening test of fetal wellbeing.<br />

In this investigation, normal studies were repeated<br />

with the same technique as initially assigned.<br />

Women with umbilical artery S/D ratios over the 90th<br />

percentile or equivocal nonstress testing were subjected<br />

to an additional test, the amniotic fluid index.<br />

When the amniotic fluid index was below the 5th<br />

percentile, the S/D ratio had AREDV, or when the<br />

nonstress test was abnormal, induction and delivery<br />

were recommended. More women in the Doppler<br />

group than in the nonstress group underwent induction<br />

of labor (4.8% versus 1.9%, p

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