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contraction stress test (cst)

a contraction stress test (cst) measures the fetus's ability to tolerate the stress of uterine contractions started (induced) before true labour begins.

electronic fetal monitoring is done during a contraction stress test to evaluate the fetus's heart rate during contractions. the fetus's heart rate during contractions helps evaluate the placenta's ability to provide enough oxygen to the fetus.

a contraction stress test that shows the placenta is not supplying enough oxygen to the fetus will help the doctor or midwife determine the safest method of delivery.

a contraction stress test is also called an oxytocin challenge test.

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