Which statement correctly describes the contraction stress test (CST)?
a. The fetal heart rate is assessed during maternal exercise.
b. An artificial larynx is used to stimulate the fetus.
c. A contraction stress test is indicated if the nonstress test is reactive.
d. Uterine contractions must be induced.
ANS: D
If a nonstress test (NST) is nonreactive, the CST is indicated. Uterine contractions are stimulated and the fetal heart rate response is recorded. During the NST, an artificial larynx may be applied to the mother's abdomen and activated to stimulate the fetus.
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