A nurse is educating a pregnant client about the Contraction Stress Test (CST).

Which statement accurately describes a negative CST?

No contractions were induced during the test.

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

The FHR remained stable throughout the test.

The client experienced mild uterine cramping during the tes.

Answer and Explanation

The Correct Answer is C

This means that the baby’s heart rate did not slow down after the contractions induced by oxytocin, which is a sign of normal fetal well-being.

A negative CST is normal and desirable.

Choice A is wrong because no contractions were induced during the test.

This means that the test was inconclusive and could not assess the baby’s response to stress.

Choice B is wrong because late decelerations of the FHR were observed with at least 50% of contractions.

This means that the baby’s heart rate slowed down and stayed slow after the contractions, which is a sign of fetal distress and hypoxia.

A positive CST is abnormal and concerning.

Choice D is wrong because the client experienced mild uterine cramping during the test.

This is not a relevant factor for interpreting the CST results, which depend on the FHR patterns.

Uterine cramping can be a side effect of oxytocin administration or nipple stimulation.

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Correct Answer is A

Explanation

This finding indicates that the umbilical cord is being compressed, which can reduce the blood flow and oxygen supply to the fetus.

Variable decelerations are abrupt decreases in the fetal heart rate (FHR) that vary in shape, duration, and degree of fall below the baseline.

They are seen as W- or U-shaped waves on the monitor.

Choice B is wrong because fetal hypoxia is not indicated by variable decelerations, but by late decelerations, which are gradual decreases in the FHR that begin after the peak of the contraction and return to baseline after the contraction ends.

Late decelerations are associated with uteroplacental insufficiency, which means that the placenta is not delivering enough oxygen to the fetus.

Choice C is wrong because normal placental function is not indicated by variable decelerations, but by reassuring FHR patterns, such as moderate variability (6 to 25 beats per minute) and accelerations (increases in the FHR above the baseline).

Normal placental function ensures adequate fetal oxygenation and well-being.

Choice D is wrong because adequate fetal oxygenation is not indicated by variable decelerations, but by reassuring FHR patterns, such as moderate variability and accelerations.

Adequate fetal oxygenation means that the fetus is not experiencing hypoxia or distress.

Normal ranges for FHR are 110 to 160 beats per minute at term and 120 to 160 beats per minute before term.

Normal ranges for uterine contractions are 2 to 5 contractions in 10 minutes, lasting less than 90 seconds each.

A. Drink several glasses of water. B. Empty her bladder completely. C. Lie on her right side D. Fast for at least 4 hours.

Correct Answer is A

Explanation

The woman should drink several glasses of water before the abdominal ultrasound procedure.

This is because a full bladder helps to push the intestines away and improve the visibility of the uterus and the fetus.

Drinking water also helps to avoid gas buildup in the abdomen, which could interfere with the sound waves.

Choice B is wrong because emptying the bladder would make it harder to see the uterus and the fetus.

Choice C is wrong because lying on the right side would not affect the quality of the ultrasound image.

Choice D is wrong because fasting is not necessary for an abdominal ultrasound, unless instructed by the doctor for a specific reason.

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A nurse is educating a pregnant client about the Contraction Stress Test (CST). Which statement accurately describes a negative CST?

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Naxlex Comprehensive Predictor Exams

During a CST, the nurse observes variable decelerations of the FHR with or without contractions. What does this finding indicate?

Correct Answer is A

Explanation

A nurse is performing an abdominal ultrasound for a client who is at 28 weeks of gestation. The nurse should instruct the client to do which of the following before the procedure?

Correct Answer is A

Explanation

A nurse is reviewing the results of an Alpha-fetoprotein Test (AFP) with a pregnant client. What does a low level of AFP (<0.5 MoM) potentially indicate?

A nurse is discussing the risks associated with a Contraction Stress Test (CST) with a pregnant client. Which complication should the nurse mention?

A nurse is explaining the purpose of a Doppler ultrasound blood flow analysis to a client who has intrauterine growth restriction (IUGR). The nurse should inform the client that this test measures which of the following?

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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?

A nurse is explaining the purpose of an Alpha-fetoprotein Test (AFP) to a pregnant client. What is the test primarily used for ?

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

A nurse is caring for a client who had an amniocentesis at 16 weeks gestation and reports cramping and vaginal bleeding 24 hours later. Which of the following actions should the nurse take first?

A nurse is educating a pregnant client about the Contraction Stress Test (CST).

Which statement accurately describes a negative CST?