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?
Magnetic Resonance Imaging (MRI).
Doppler flow studies.
Amniocentesis.
Chorionic villus sampling (CVS).
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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Correct Answer is B
Explanation
Choice A rationale
Encouraging the client to continue pushing is not appropriate at this stage. The client is 9 cm dilated, which indicates that she is in the transition phase of labor, not yet fully dilated and ready to push. Pushing at this stage could cause cervical swelling and delay progress.
Choice B rationale
Preparing the client for delivery is the most appropriate action. The client is in the transition phase of labor, with 9 cm dilation, 100% effacement, and +1 station. This indicates that delivery is imminent, and the nurse should prepare for the birth process.
Choice C rationale
Administering pain relief as prescribed may be considered, but it is not the priority action at this stage. The client is in the transition phase, and administering pain relief could interfere with the natural progression of labor. Non-pharmacological support may be more appropriate.
Choice D rationale
Reassuring the client and providing emotional support is important, but it is not the primary action at this stage. The nurse should focus on preparing for delivery while also providing support and reassurance.
Correct Answer is C
Explanation
Choice A rationale
While a negative result in a Contraction Stress Test (CST) is desirable, this choice does not fully explain the significance of the result. A negative CST indicates that there are no late decelerations in the fetal heart rate in response to uterine contractions, suggesting that the fetus can handle the stress of labor.
Choice B rationale
This choice describes the criteria for a reactive Nonstress Test (NST), not a Contraction Stress Test (CST). In a CST, the focus is on the fetal heart rate response to contractions, not the number of contractions or variability.
Choice C rationale
A negative result in a CST indicates fetal well-being, meaning that the fetus can tolerate the stress of uterine contractions without showing signs of distress, such as late decelerations in the heart rate. This result suggests that the fetus is likely to handle labor well.
Choice D rationale
A positive result in a CST indicates that the fetus has late decelerations in response to contractions, which can be a sign of fetal distress. This result may suggest fetal growth restriction, lower Apgar scores, and the potential need for cesarean delivery. However, this choice does not fully capture the significance of a positive CST result.