The nurse providing care for the laboring woman should understand that variable fetal heart rate (FHR) decelerations are caused by:
a. Altered fetal cerebral blood flow.
b. Umbilical cord compression.
c. Uteroplacental insufficiency.
d. Fetal hypoxemia.
B
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A Altered fetal cerebral blood flow would result in early decelerations in the FHR.
B Variable decelerations can occur any time during the uterine contracting phase and are caused by compression of the umbilical cord.
C Uteroplacental insufficiency would result in late decelerations in the FHR.
D Fetal hypoxemia would result in tachycardia initially and then bradycardia if hypoxia continues.
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