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The OB provider is concerned about placental perfusion and intrauterine growth restriction (IUGR) after noting minimal fetal growth over the past month.

 

What non-invasive antenatal test would the nurse anticipate the provider will order?

A.

Magnetic Resonance Imaging (MRI).

B.

Doppler flow studies.

C.

Amniocentesis.

D.

Chorionic villus sampling (CVS).

Answer and Explanation

The Correct Answer is B

Choice A rationale

 

Magnetic Resonance Imaging (MRI) is a non-invasive imaging technique that provides detailed images of the fetus and placenta. However, it is not typically used as the first-line test for assessing placental perfusion and IUGR. Doppler flow studies are more specific for evaluating blood flow and detecting issues related to placental insufficiency.

 

Choice B rationale

 

Doppler flow studies are non-invasive tests that assess blood flow in the umbilical artery and other fetal vessels. These studies are particularly useful in evaluating placental perfusion and identifying intrauterine growth restriction (IUGR). Abnormal Doppler flow patterns can indicate compromised blood flow to the fetus, which is a concern in cases of minimal fetal growth.

 

Choice C rationale

 

Amniocentesis is an invasive procedure that involves extracting a sample of amniotic fluid for genetic testing and assessment of fetal lung maturity. It is not used for evaluating placental perfusion or IUGR7.

 

Choice D rationale

 

Chorionic villus sampling (CVS) is an invasive procedure used for early genetic testing by sampling placental tissue. It is not used for assessing placental perfusion or IUGR7.


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View Related questions

Correct Answer is A

Explanation

Choice A rationale

A non-stress test (NST) is a common test used to evaluate fetal well-being, especially in cases of decreased fetal movement. It measures the fetal heart rate in response to its movements. A reactive NST, where the fetal heart rate increases with movement, indicates good oxygenation and neurological function.

Choice B rationale

A contraction stress test (CST) evaluates the fetal heart rate response to uterine contractions, which can be induced by oxytocin or nipple stimulation. It is typically used to assess placental function and fetal tolerance to labor, not for initial assessment of decreased fetal movement.

Choice C rationale

A biophysical profile (BPP) combines an NST with ultrasound to assess fetal breathing, movement, tone, and amniotic fluid volume. While comprehensive, it is more time-consuming and usually reserved for further evaluation if the NST is non-reactive.

Choice D rationale

An ultrasound can assess fetal growth, amniotic fluid volume, and anatomical structures. However, it does not provide real-time information on fetal heart rate reactivity, making it less suitable for immediate assessment of decreased fetal movement.

Correct Answer is A

Explanation

Choice A rationale

A non-stress test (NST) is a common initial assessment for decreased fetal movement. It evaluates fetal heart rate patterns in response to fetal movements, providing information about fetal well-being and oxygenation.

Choice B rationale

A biophysical profile (BPP) is a more comprehensive assessment that includes an NST and ultrasound evaluation of fetal movements, tone, breathing, and amniotic fluid volume. It may be ordered if the NST results are non-reassuring or if there are other concerns.

Choice C rationale

An ultrasound can provide valuable information about fetal growth, amniotic fluid volume, and placental function. It may be used in conjunction with other tests but is not the first-line assessment for decreased fetal movement.

Choice D rationale

Amniocentesis is an invasive procedure used for specific indications, such as genetic testing or assessing fetal lung maturity. It is not typically used for initial assessment of decreased fetal movement.

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