The nurse providing care for the laboring woman recognizes that late fetal heart rate (FHR) decelerations are caused by:
Select one:
Knot in the umbilical cord.
Altered fetal cerebral blood flow.
Uteroplacental insufficiency.
Umbilical cord compression.
The Correct Answer is C
a. This is a common cause of variable decelerations, not late decelerations.
b. This is a common cause of variable decelerations, not late decelerations.
c. Late decelerations are caused by decreased blood flow to the placenta during contractions, resulting in a reduced oxygen supply to the fetus.
d. This is a common cause of variable decelerations, not late decelerations.

Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a. A scalp electrode is not indicated unless there is a problem with the external monitor tracing or if further assessment of the fetal heart rate variability is needed.
b. This is important but repositioning the patient is the priority.
c. Amnioinfusion is only done if repositioning the patient does not resolve the late decelerations.
d. The nurse is observing late decelerations of the fetal heart rate, which indicate uteroplacental insufficiency and fetal hypoxia. The nurse's first priority is to reposition the patient to improve placental blood flow and oxygen delivery to the fetus. Repositioning can be done by turning the patient to her side, elevating her legs, or placing a wedge under her hip.
Correct Answer is C
Explanation
a. A positive CST indicates late decelerations that persist in more than 50% of the contractions, which is not the case in this scenario.
b. A negative CST indicates the absence of late decelerations, which is not the case in this scenario.
c. A satisfactory CST indicates that there are no late decelerations, and the test is considered normal.
d. Reactive is not a term used to interpret a CST.
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