Effect of Fetal Alcohol Exposure on Umbilical Artery and Fetal Heart FunctionIn alcohol-exposed fetuses, a decrease in the umbilical artery PI was observed during the first alcohol exposure (Figure 4A). Longitudinal evaluation of the umbilical artery revealed a progressive decline in PI throughout gestation in both groups. During the period of alcohol exposure in the treatment group, the umbilical artery PIs were decreased by a greater magnitude; this difference was not as pronounced in the third trimester equivalent that was during the time when fetuses were not repeatedly exposed to alcohol (P ¼ .0962; Figure 4B). Although alcohol’s effect on the umbilical artery was apparent, there was no significant difference in fetal heart Tei