A client has received MSAFP test result.
The client is requesting additional testing to determine whether the fetus has a chromosomal abnormality.
Which of the following antenatal tests would the nurse anticipate the provider will order?
Amniocentesis.
Nonstress Test.
Biophysical Profile.
Chorionic Villus Sampling.
The Correct Answer is A
Choice A rationale
Amniocentesis is a diagnostic test that involves extracting a small amount of amniotic fluid from the uterus to test for chromosomal abnormalities and genetic disorders. It is typically performed between 15 and 20 weeks of pregnancy. The fluid contains fetal cells and various chemicals produced by the baby, which can be analyzed to detect conditions such as Down syndrome, trisomy 18, and neural tube defects. This test is highly accurate and is often recommended when screening tests like the MSAFP indicate a potential issue.
Choice B rationale
A Nonstress Test (NST) is a non-invasive test that measures the fetal heart rate in response to its movements. It is used to assess fetal well-being, particularly in the third trimester, but it does not provide information about chromosomal abnormalities. The NST is typically used to monitor high-risk pregnancies and to ensure that the fetus is receiving enough oxygen.
Choice C rationale
A Biophysical Profile (BPP) combines an ultrasound with a Nonstress Test to evaluate the fetus’s health. It assesses fetal breathing movements, body movements, muscle tone, amniotic fluid volume, and heart rate reactivity. While it provides a comprehensive assessment of fetal well-being, it does not specifically diagnose chromosomal abnormalities. The BPP is often used in the third trimester to monitor high-risk pregnancies.
Choice D rationale
Chorionic Villus Sampling (CVS) is another diagnostic test that can detect chromosomal abnormalities and genetic disorders. It involves taking a small sample of placental tissue (chorionic villi) for analysis. CVS is typically performed between 10 and 13 weeks of pregnancy, earlier than amniocentesis. While it provides similar diagnostic information, it is not the test of choice following an abnormal MSAFP result, which is usually conducted later in pregnancy.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Monitoring the patient’s vocalizations and facial expressions can provide some information about the intensity of contractions, but it is subjective and not a reliable method for accurately assessing contraction intensity.
Choice B rationale
Palpating the maternal abdomen during a contraction is the best method for determining the intensity of contractions. By feeling the firmness of the uterus, the nurse can assess whether the contractions are mild, moderate, or strong. This method provides a more objective measure of contraction intensity compared to other methods.
Choice C rationale
Timing the amount of time between the ending of one contraction and the beginning of the next provides information about the frequency of contractions, not their intensity. This choice does not address the question of how to determine contraction intensity.
Choice D rationale
Palpating the maternal abdomen right after a contraction does not provide information about the intensity of the contraction that just occurred. The uterus will be relaxed after the contraction, making it difficult to assess the strength of the previous contraction.
Correct Answer is C
Explanation
Choice A rationale
Keeping four side rails up is a safety measure to prevent falls, but it is not specific to the care of a client in active labor. It is a general safety precaution used for clients who are at risk of falling or have impaired mobility.
Choice B rationale
Inserting an indwelling urinary catheter is not a routine action for a client in active labor. Catheterization is typically reserved for specific medical indications, such as urinary retention or the need for accurate urine output measurement in certain high-risk situations.
Choice C rationale
Checking the cervix prior to administering medication is crucial in active labor. This ensures that the medication is appropriate for the stage of labor and helps avoid complications such as administering pain relief too early or too late, which could affect labor progression and fetal well-being.
Choice D rationale
Monitoring the fetal heart rate (FHR) every hour is important, but it may not be frequent enough in active labor. Continuous or more frequent monitoring is often required to promptly detect any signs of fetal distress and take appropriate actions.
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