A nurse is evaluating the results of a contraction stress test (CST) for a pregnant client who had a nonreactive or nonreassuring result on a nonstress test (NST).
The nurse notes that there are no late decelerations of the fetal heart rate (FHR) after three contractions in a 10-minute period.
How should the nurse interpret this finding?
Positive or abnormal
Negative or normal
Equivocal or suspicious
Unsatisfactory or incomplete
The Correct Answer is B
Negative or normal. This means that there are no late decelerations of the fetal heart rate (FHR) after three contractions in a 10-minute period, which indicates that the baby can tolerate the stress of labor contractions.
Choice A is wrong because positive or abnormal results mean that there are late decelerations of the FHR after three contractions in a 10-minute period, which suggests that the baby may be at risk of hypoxia or injury during labor.
Choice C is wrong because equivocal or suspicious results mean that there are either variable decelerations or late decelerations after fewer than half of the contractions, which require further testing or monitoring.
Choice D is wrong because unsatisfactory or incomplete results mean that there are either fewer than three contractions in a 10-minute period or poor quality of the FHR tracing, which prevent an accurate interpretation of the test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Negative or normal.This means that there are no late decelerations of the fetal heart rate (FHR) after three contractions in a 10-minute period, which indicates that the baby can tolerate the stress of labor contractions.
Choice A is wrong because positive or abnormal results mean that there are late decelerations of the FHR after three contractions in a 10-minute period, which suggests that the baby may be at risk of hypoxia or injury during labor.
Choice C is wrong because equivocal or suspicious results mean that there are either variable decelerations or late decelerations after fewer than half of the contractions, which require further testing or monitoring.
Choice D is wrong because unsatisfactory or incomplete results mean that there are either fewer than three contractions in a 10-minute period or poor quality of the FHR tracing, which prevent an accurate interpretation of the test.
Correct Answer is ["E"]
Explanation
The test result is nonreactive after 40 minutes.Vibroacoustic stimulation (VAS) is the application of a vibratory sound stimulus to the abdomen of a pregnant woman to induce fetal heart rate (FHR) accelerations.VAS is typically used during a nonstress test (NST) to elicit fetal movement and reactivity when the baseline FHR variability is minimal or the test result is nonreactive after 40 minutes.VAS can shorten the testing time and reduce the incidence of non-reactive cardiotocography.
Choice A is wrong because the fetus’s presentation does not affect the use of VAS.
Choice B is wrong because VAS is not indicated for a fetus that has not moved for 40 minutes, unless the NST result is also nonreactive.
Choice C is wrong because minimal baseline FHR variability is not a sufficient indication for VAS, unless the NST result is also nonreactive.
Choice D is wrong because a history of stillbirth does not affect the use of VAS.
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