(Select all that apply) A nurse is performing a nonstress test (NST) for a client who is at 32 weeks of gestation and has gestational diabetes mellitus.

The nurse uses vibroacoustic stimulation to elicit fetal movement and acceleration of FHR.

What are the indications for using this method?

The fetus is in a breech presentation

The fetus has not moved for 40 minutes.

The baseline FHR variability is minimal.

The client has a history of stillbirth.

The test result is nonreactive after 40 minutes.

Answer and Explanation

Correct Answer : E

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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Correct Answer is B

Explanation

Negative CST.A negative CST means that there are no late or significant variable decelerations of the fetal heart rate (FHR) during three uterine contractions in 10 minutes.

This indicates that the fetus is well oxygenated and can tolerate the stress of labor contractions.

Choice A is wrong because a positive CST means that there are late decelerations of the FHR with 50% or more of the contractions.

This suggests that the fetus is at risk of hypoxia and may need early delivery.

Choice C is wrong because an unsatisfactory CST means that there are fewer than three contractions in 10 minutes or the tracing is not interpretable.

This does not provide enough information to assess the fetal well-being.

Choice D is wrong because an equivocal CST means that there are either intermittent late decelerations or significant variable decelerations.

This indicates that the fetus may have some degree of compromise and may need further testing.

Normal ranges for FHR are 110 to 160 beats per minute, and for uterine contractions are 2 to 5 per 10 minutes.

A. Discontinue oxytocin infusion and monitor the client for another 10 minutes B. Increase oxytocin infusion and monitor the client until four contractions occur in 10 minutes C. Stop oxytocin infusion and notify the provider of a positive CST result D. Maintain oxytocin infusion and monitor the client until a negative CST result is confirmed

Correct Answer is D

Explanation

Maintain oxytocin infusion and monitor the client until a negative CST result is confirmed.

A negative CST result means that there are no late decelerations of the FHR after three contractions in 10 minutes.This indicates that the fetus can tolerate the stress of labor and has adequate oxygenation.

Choice A is wrong because discontinuing oxytocin infusion and monitoring the client for another 10 minutes will not provide enough information about the fetal response to contractions.The test requires at least three contractions in 10 minutes to be valid.

Choice B is wrong because increasing oxytocin infusion and monitoring the client until four contractions occur in 10 minutes may cause uterine hyperstimulation, which can compromise fetal oxygenation and lead to fetal distress.

Choice C is wrong because stopping oxytocin infusion and notifying the provider of a positive CST result is not appropriate.A positive CST result means that there are late decelerations of the FHR after more than half of the contractions, indicating fetal hypoxia and placental insufficiency.

In this case, there are no late decelerations, so the test result is not positive.

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(Select all that apply) A nurse is performing a nonstress test (NST) for a client who is at 32 weeks of gestation and has gestational diabetes mellitus. The nurse uses vibroacoustic stimulation to elicit fetal movement and acceleration of FHR. What are the indications for using this method?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a client who is pregnant and undergoing a contraction stress test (CST). The nurse observes three uterine contractions in 10 minutes, with no late or significant variable decelerations of the fetal heart rate (FHR). How should the nurse interpret this finding?

Correct Answer is B

Explanation

A nurse is caring for a client who is undergoing an oxytocin-stimulated contraction stress test (CST). The nurse observes three contractions in 10 minutes with no late decelerations of the fetal heart rate (FHR). Which of the following actions should the nurse take?

Correct Answer is D

Explanation

(Select all that apply) A nurse is performing a nonstress test (NST) for a client who is at 32 weeks of gestation and has gestational diabetes mellitus. The nurse uses vibroacoustic stimulation to elicit fetal movement and acceleration of FHR. What are the indications for using this method?

A nurse is comparing nonstress test (NST) and contraction stress test (CST) for assessing fetal well-being. What is an advantage of NST over CST?

A nurse is using vibroacoustic stimulation (VAS) to stimulate fetal movement during a nonstress test (NST). What action should the nurse take when applying VAS?

A nurse is providing discharge instructions to a client who had a nonreactive nonstress test (NST) followed by a biophysical profile (BPP) with a score of 8/10. Which of the following statements by the client indicates an understanding of the teaching?

A nurse is interpreting the results of a contraction stress test (CST) for a client who is at 38 weeks of gestation. The nurse notes that there are no late or significant variable decelerations of the fetal heart rate (FHR). How should the nurse document this finding?

(Select all that apply) A nurse is performing a nonstress test (NST) for a client who is at 32 weeks of gestation and has gestational diabetes mellitus.

The nurse uses vibroacoustic stimulation to elicit fetal movement and acceleration of FHR.

What are the indications for using this method?