Which statement describes a normal finding in a contraction stress test?

• A. Late decelerations are frequent
• B. No late decelerations occurred
• C. Presence of variable decelerations
• D. Only early decelerations are noted

Answer: (B)

In a contraction stress test, the primary goal is to assess the fetal heart rate response to uterine contractions. A normal finding is indicated when no late decelerations occur during the test. Late decelerations are a concerning sign, as they suggest that the fetus may not tolerate contractions well, often indicative of potential issues related to uteroplacental insufficiency. The absence of late decelerations demonstrates that the fetus is responding appropriately to the stress of contractions, indicating good oxygenation and placental function.

Other findings, such as variable or early decelerations, do not provide the same reassurance about fetal well-being. While early decelerations can be a normal response linked to head compression during contractions, their presence does not equate to an optimal outcome like the absence of late decelerations does. Therefore, the absence of late decelerations is a key indicator of a healthy fetal response during the contraction stress test.