A nurse is explaining the purpose of a Contraction Stress Test (CST) to a pregnant client.

What does the CST aim to assess?

Fetal well-being.

Maternal blood pressure.

Placental function.

Amniotic fluid volume.

Answer and Explanation

The Correct Answer is A

A contraction stress test (CST) is performed near the end of pregnancy to determine how well the fetus will cope with the contractions of childbirth.

The aim is to induce contractions and monitor the fetus to check for heart rate abnormalities using a cardiotocograph.

A normal heartbeat is a good sign that the fetus will be healthy during labor.

Choice B is wrong because a CST does not measure maternal blood pressure.

Choice C is wrong because a CST does not assess placental function directly.

Choice D is wrong because a CST does not measure amniotic fluid volume.

Normal ranges for fetal heart rate are between 110 and 160 beats per minute.

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

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Correct Answer is A

Explanation

To measure the fetal heart rate (FHR) in response to fetal movements.

This is because the FHR should increase by at least 15 beats per minute for at least 15 seconds when the fetus moves, which indicates a healthy and reactive fetus.

This is called an acceleration.

Choice B is wrong because the uterine contractions are not related to the fetal movements or the button pressing.

The uterine contractions are measured by a tocodynamometer or an intrauterine pressure catheter.

Choice C is wrong because the fetal oxygenation and neurological function are not directly measured by the button pressing.

The fetal oxygenation can be assessed by the FHR variability and decelerations, while the neurological function can be evaluated by other tests such as biophysical profile or fetal acoustic stimulation.

Choice D is wrong because the fetal well-being and hypoxia or distress are not indicated by the button pressing alone.

The fetal well-being and hypoxia or distress are determined by the FHR patterns, such as baseline, variability, accelerations and decelerations.

A. The client’s bladder is full. B. The client’s uterus is above the symphysis pubis C. The client’s cervix is dilated D. The client’s fundal height measures 20 cm

Correct Answer is C

Explanation

. The client’s cervix is dilated.

This indicates that the client may be in preterm labor, which is a contraindication for amniocentesis.

Amniocentesis is a procedure that involves inserting a needle into the amniotic sac to obtain a sample of amniotic fluid for genetic testing or other purposes.

It is usually performed between 15 and 20 weeks of gestation.

Choice A is wrong because the client’s bladder should be full for amniocentesis.

This helps to push the uterus upward and away from the bladder, reducing the risk of injury and making it easier to visualize the fetus and the needle.

Choice B is wrong because the client’s uterus should be above the symphysis pubis at 16 weeks of gestation.

This is a normal finding and does not affect the procedure.

Choice D is wrong because the client’s fundal height should measure around 16 cm at 16 weeks of gestation.

A fundal height of 20 cm may indicate a large for gestational age fetus, multiple gestation, or polyhydramnios (excess amniotic fluid), but these are not absolute contraindications for amniocentesis.

However, they may require further evaluation and adjustment of the technique.

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A nurse is explaining the purpose of a Contraction Stress Test (CST) to a pregnant client. What does the CST aim to assess?

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Naxlex Comprehensive Predictor Exams

During a Non-Stress Test (NST), the client needs to press a button whenever they feel the fetus move. What is the purpose of this action?

Correct Answer is A

Explanation

A nurse is caring for a client who is scheduled for an amniocentesis at 16 weeks gestation. Which of the following should the nurse report to the provider?

Correct Answer is C

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?

A client asks the nurse about the risks and complications associated with prenatal ultrasound. Which of the following responses by the nurse is accurate?

A nurse is interpreting the results of a biophysical profile (BPP) for a client who is at 34 weeks of gestation. The nurse should understand that each of the five variables is assigned a score of how many points?

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 preparing a client for a biophysical profile (BPP). The nurse should instruct the client that the test involves which of the following procedures?

A nurse is reviewing the contraindications for a Contraction Stress Test (CST) with a pregnant client. Which condition would be a contraindication for the test?

A nurse is caring for a client who is scheduled for chorionic villus sampling (CVS). Which of the following statements should indicate to the nurse that the client understands the procedure?

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 explaining the purpose of a Contraction Stress Test (CST) to a pregnant client.

What does the CST aim to assess?