A pregnant client is undergoing a quad screen test and inquires about the possible results.
Which of the following responses is most appropriate?
The test examines fetal DNA to determine the fetus’s gender.
The test uses fetal tissue to examine the fetus’s genetic makeup for potential anomalies.
The test examines maternal alpha-fetoprotein to assess maternal liver function.
The test examines maternal alpha-fetoprotein to determine if the levels are high or low, indicating specific disorders.
The test examines maternal alpha-fetoprotein to determine if the levels are high or low, indicating specific disorders.
The Correct Answer is D
Choice A rationale:
Incorrect. The quad screen test does not examine fetal DNA to determine gender. That is the role of other tests, such as amniocentesis or chorionic villus sampling (CVS).
Gender determination is not a primary objective of the quad screen test.
Focusing on gender unnecessarily narrows the scope of the test's potential findings.
Choice B rationale:
Incorrect. The quad screen test does not use fetal tissue. It is a non-invasive blood test that measures levels of four substances in the mother's blood: alpha-fetoprotein (AFP), human chorionic gonadotropin (hCG), unconjugated estriol (uE3), and inhibin A.
Fetal tissue sampling is more invasive and carries risks, while the quad screen is a safer alternative.
Clarifying the non-invasive nature of the test is crucial for informed consent and patient understanding.
Choice C rationale:
Incorrect. While AFP levels can be affected by maternal liver function, that is not the primary focus of the quad screen test.
Liver function tests are specifically designed to assess liver health, and they are not part of the quad screen panel.
Distinguishing between liver function assessment and AFP's role in screening for fetal anomalies is essential for accurate interpretation.
Choice D rationale:
Correct. The quad screen test measures levels of AFP, hCG, uE3, and inhibin A in the mother's blood. These substances can provide information about the risk of certain fetal chromosomal abnormalities and neural tube defects.
Elevated AFP levels can indicate an increased risk for neural tube defects such as spina bifida or anencephaly.
Low AFP levels can be associated with Down syndrome or other chromosomal abnormalities.
Understanding the specific disorders that can be indicated by AFP levels is crucial for patient counseling and further testing decisions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Rationale for Choice A:
Administering oxygen via a mask or nasal cannula is the most appropriate nursing intervention in this situation. Here's a detailed explanation:
- Addresses Hypoxia: The client's symptoms of lightheadedness, dizziness, and tingling fingers strongly suggest hyperventilation, which can lead to hypoxemia (low blood oxygen levels). Administering oxygen directly increases the concentration of oxygen in the client's bloodstream, rapidly addressing the hypoxia and its associated symptoms.
- Promotes Calmness: Oxygen therapy can also have a calming effect, which can help to slow the client's breathing rate and further improve oxygenation. This is crucial during the transition phase of labor, as anxiety and stress can exacerbate hyperventilation.
- Supports Fetal Oxygenation: Ensuring adequate maternal oxygenation is essential for fetal well-being. By providing oxygen to the mother, the nurse is also indirectly supporting the oxygen supply to the fetus.
Rationale for Choice B:
Telling the client to breathe at a normal rate is not an effective intervention for hyperventilation. It's often challenging for a client experiencing hyperventilation to control their breathing rate on command. This approach can also increase anxiety, potentially worsening the hyperventilation.
Rationale for Choice C:
While notifying the physician is important to keep them informed of the client's status, it's not the immediate priority in this situation. The nurse can independently initiate oxygen therapy to address the client's hypoxia and improve her condition. The physician can then be consulted for further guidance or interventions if needed.
Rationale for Choice D:
Instructing the client to breathe into her cupped hands is a technique that can sometimes help to slow breathing and increase carbon dioxide levels. However, it's not as effective as administering oxygen in addressing the underlying hypoxia and may not provide sufficient relief for the client's symptoms.
Correct Answer is C
Explanation
Choice C rationale:
It is a misconception that fetal movement decreases as delivery approaches. While the nature of the movements may change— becoming less like kicks and more like rolls or twists due to less space in the uterus—the frequency of movements should remain consistent. In fact, increased fetal movement can be a sign of labor approaching. Therefore, a pregnant client who believes that fetal movements will decrease closer to delivery needs further instruction to ensure they are aware of this important health indicator.
Here's a detailed explanation of why the other choices are correct:
Choice A: This statement is correct. Fetal kick counts can be performed at home, providing a convenient and comfortable way to monitor fetal well-being.
Choice B: This statement is also correct. A decrease in fetal movement, defined as less than 3 kicks in an hour, is a potential concern and warrants contacting a healthcare provider for further evaluation.
Choice D: This statement is accurate as well. Daily fetal kick counts are generally recommended to establish a baseline of the baby's usual activity pattern and to detect any significant changes that might indicate a problem.
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