A nurse is reviewing the results of a Contraction Stress Test (CST) with a pregnant client.

What does an equivocal CST indicate?

Late decelerations of the FHR with less than 50% of contractions.

Late decelerations of the FHR with at least 50% of contractions.

No late decelerations of the FHR during contractions.

Variable decelerations of the FHR with or without contractions.

Answer and Explanation

The Correct Answer is A

An equivocal CST indicates late decelerations of the FHR with less than 50% of contractions.

This means that the fetus may have some degree of hypoxia or distress, but not enough to warrant immediate delivery.

An equivocal CST may also result from hyperstimulation of the uterus, which can cause excessive contractions and reduce blood flow to the placenta.

Choice B is wrong because late decelerations of the FHR with at least 50% of contractions is a positive CST, which indicates a high risk of fetal death due to hypoxia and is a contraindication to labor.

Choice C is wrong because no late decelerations of the FHR during contractions is a negative CST, which indicates a good fetal wellbeing and tolerance of labor.

Choice D is wrong because variable decelerations of the FHR with or without contractions are not related to uterine activity and may indicate cord compression or other fetal problems.

Variable decelerations are not used to interpret CST results.

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Correct Answer is B

Explanation

This is because cramping and vaginal bleeding after an amniocentesis may indicate a possible miscarriage or placental abruption, which can compromise fetal oxygenation and perfusion.

Monitoring fetal heart rate can help detect signs of fetal distress and guide further interventions.

Choice A is wrong because administering Rho(D) immune globulin is indicated for Rh-negative mothers who undergo amniocentesis to prevent isoimmunization, but it is not a priority action in this scenario.

Choice C is wrong because assessing maternal vital signs is important to monitor for signs of infection, hemorrhage, or shock, but it is not as urgent as monitoring fetal well-being.

Choice D is wrong because obtaining an order for an ultrasound exam can help confirm the diagnosis and evaluate the placenta and amniotic fluid, but it is not the first action to take in this situation.

A. "I will have sensors placed on my abdomen to monitor the FHR and uterine contractions.". B. "I will need to fast for 24 hours before the test.". C. "I will be sedated during the test to prevent discomfort.". D. "I will need to drink plenty of fluids before the test.".

Correct Answer is A

Explanation

“I will have sensors placed on my abdomen to monitor the FHR and uterine contractions.” This statement indicates the client understands the test procedure of a CST, which is a test that triggers contractions and registers how the baby’s heart reacts.

The test is done by placing two sensor belts around the abdomen, one to measure the baby’s heartbeat and the other to measure contractions.

The client may receive oxytocin through an IV to induce contractions.

Choice B is wrong because the client does not need to fast for 24 hours before the test.

There is no evidence that fasting is required for a CST.

Choice C is wrong because the client will not be sedated during the test.

Sedation is not necessary for a CST and may interfere with the results.

Choice D is wrong because the client does not need to drink plenty of fluids before the test.

There is no evidence that drinking fluids is required for a CST.

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A nurse is reviewing the results of a Contraction Stress Test (CST) with a pregnant client. What does an equivocal CST indicate?

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Naxlex Comprehensive Predictor Exams

A nurse is caring for a patient who had an amniocentesis performed at 16 weeks gestation and reports cramping and vaginal bleeding 24 hours later which action should be taken first?

Correct Answer is B

Explanation

A nurse is caring for a client scheduled for a CST. Which statement indicates the client understands the test procedure?

Correct Answer is A

Explanation

A nurse is preparing a client for a Contraction Stress Test (CST). Which method can be used to induce uterine contractions during the test?

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A nurse is reviewing the results of a Contraction Stress Test (CST) with a pregnant client.

What does an equivocal CST indicate?