Contraction stress test


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Contraction stress test


A contraction stress test (CST) measures the fetus's ability to tolerate the stress of uterine contractions started (induced) before true labor begins.

Electronic fetal heart 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 indicates the placenta is not supplying enough oxygen to the fetus will help the doctor determine the safest method of delivery.

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

Credits


Author Sandy Jocoy, RN
Editor Kathleen M. Ariss, MS
Associate Editor Tracy Landauer
Associate Editor Pat Truman, MATC
Primary Medical Reviewer Sarah Marshall, MD - Family Medicine
Specialist Medical Reviewer Kirtly Jones, MD - Obstetrics and Gynecology
Last Updated June 28, 2008

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Last updated: June 28, 2008
Author: Sandy Jocoy, RN
Reviewed By: Sarah Marshall, MD - Family Medicine, Kirtly Jones, MD - Obstetrics and Gynecology
Editors: Kathleen M. Ariss, MS, Pat Truman, MATC

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