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?
An ultrasound and a nonstress test.
An ultrasound and a contraction stress test.
A Doppler ultrasound and a nonstress test.
A Doppler ultrasound and a contraction stress test.
The Correct Answer is A
The test involves an ultrasound and a nonstress test.
A biophysical profile (BPP) is a way to check on the overall fetal health by observing the fetus’s heart rate, breathing, movement, muscle tone, and the amount of amniotic fluid surrounding the fetus in the uterus.
It is typically performed after 28 weeks of pregnancy, especially for high-risk pregnancies or if there is a chance of complications.
Choice B is wrong because a contraction stress test is not part of a BPP.
A contraction stress test measures how the fetus’s heart rate changes during contractions induced by oxytocin or nipple stimulation.
It is a different test from a nonstress test, which measures the fetus’s heart rate while moving and at rest without any stimulation.
Choice C is wrong because a Doppler ultrasound is not part of a BPP.
A Doppler ultrasound uses sound waves to measure the blood flow in the umbilical cord and other blood vessels.
It is a different type of ultrasound from the one used in a BPP, which uses sound waves to create images of the fetus and the amniotic fluid.
Choice D is wrong because it combines two incorrect components from choices B and C. A BPP does not involve a Doppler ultrasound or a contraction stress test.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
“The patient should have a full bladder for a transabdominal US and an empty bladder for a transvaginal US.”1 This is because a full bladder helps to lift the uterus and improve the visibility of the pelvic organs in a transabdominal US, while an empty bladder prevents distortion of the image in a transvaginal US.
Choice B is wrong because tight-fitting clothing is not necessary and lying prone on an examination table is uncomfortable and may interfere with the insertion of the vaginal probe.
Choice C is wrong because loose-fitting clothing is not necessary and lying supine on an examination table may cause supine hypotension syndrome in pregnant women.
Choice D is wrong because loose-fitting clothing is not necessary and lying prone on an examination table is uncomfortable and may interfere with the insertion of the vaginal probe.
Correct Answer is B
Explanation
A low level of AFP (<0.5 MoM) in a pregnant woman can indicate that the fetus has a chromosomal abnormality, such as Down syndrome or Edwards syndrome.
This is because these conditions affect the development of the fetal liver, which produces AFP.
Choice A is wrong because neural tube defects, such as spina bifida, are associated with high levels of AFP (>2.5 MoM) in the maternal blood.
This is because AFP can leak from the open spinal canal of the fetus into the amniotic fluid and then into the maternal blood.
Choice C is wrong because maternal weight-related factors do not affect the level of AFP in the maternal blood.
However, they can affect the interpretation of the AFP test results, as the test needs to be adjusted for maternal weight, age, ethnicity, and gestational age.
Choice D is wrong because fetal demise (death) can also cause high levels of AFP in the maternal blood, as the AFP from the dead fetus can leak into the amniotic fluid and then into the maternal blood.
Normal ranges of AFP in pregnant women vary depending on the gestational age and the method of measurement.
Generally, normal levels of AFP are below 10 ng/ml in nonpregnant adults and below 2.5 MoM in pregnant women.
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