The obstetrician is caring for a client with gestational hypertension. She 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
MRI is not typically used for assessing placental perfusion or IUGR. It provides detailed imaging but is not the primary tool for evaluating fetal growth.
Choice B rationale
Doppler Flow Studies are used to assess placental and fetal blood flow, making them crucial for evaluating placental perfusion and diagnosing IUGR in gestational hypertension.
Choice C rationale
Amniocentesis is used for genetic testing and assessing fetal lung maturity, not for evaluating placental perfusion or diagnosing IUGR in gestational hypertension.
Choice D rationale
Chorionic Villus Sampling (CVS) is for early genetic testing and not suitable for assessing placental perfusion or IUGR, which requires evaluation of blood flow.
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Related Questions
Correct Answer is B
Explanation
Choice A rationale
MRI is not typically used for assessing placental perfusion or IUGR. It provides detailed imaging but is not the primary tool for evaluating fetal growth.
Choice B rationale
Doppler Flow Studies are used to assess placental and fetal blood flow, making them crucial for evaluating placental perfusion and diagnosing IUGR in gestational hypertension.
Choice C rationale
Amniocentesis is used for genetic testing and assessing fetal lung maturity, not for evaluating placental perfusion or diagnosing IUGR in gestational hypertension.
Choice D rationale
Chorionic Villus Sampling (CVS) is for early genetic testing and not suitable for assessing placental perfusion or IUGR, which requires evaluation of blood flow.
Correct Answer is D
Explanation
Choice A rationale
Fetal lung maturity is typically assessed using amniocentesis or lecithin-sphingomyelin (L/S) ratio. Normal L/S ratio is 2: or greater.
Choice B rationale
Rh incompatibility is assessed using indirect Coombs test, not maternal serum alpha-fetoprotein. Normal Coombs test is negative.
Choice C rationale
Various markers of fetal well-being are assessed using biophysical profile or non-stress test, not maternal serum alpha-fetoprotein. Normal biophysical profile score is 8-10.
Choice D rationale
Maternal serum alpha-fetoprotein is a screening test for neural tube defects such as spina bifida and anencephaly. Normal alpha-fetoprotein levels range from 10-150 ng/mL.
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