A nurse is reinforcing teaching with a client who is undergoing amniotic fluid assessment for the lecithin/sphingomyelin ratio. Which of the following client statements indicates an understanding of the teaching?
"The results will show if my baby's lungs are mature."
"This test determines how well my placenta is functioning."
"This test is done if there is a risk of an Rh incompatibility."
"The results can indicate a genetic disorder."
The Correct Answer is A
A. The lecithin/sphingomyelin (L/S) ratio assesses fetal lung maturity. A higher ratio indicates that the baby's lungs are mature enough to handle breathing air outside the womb, which is the primary purpose of this test.
B. The L/S ratio test does not assess placental function. Placental function is evaluated through other tests, such as Doppler studies or biophysical profiles.
C. The L/S ratio test is not related to Rh incompatibility. Rh incompatibility issues are managed through different assessments, such as the Coombs test and Rh factor screening.
D. The L/S ratio test does not indicate genetic disorders. Genetic disorders are assessed through tests like amniocentesis or chorionic villus sampling, not the L/S ratio.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. A single crease in the palm is correct. A single transverse palmar crease (simian line) is a common finding in infants with trisomy 21.
B. A notch in the lip is not a common finding in trisomy 21. This feature is more associated with other conditions like cleft lip or palate.
C. Extra digits on the hand (polydactyly) is not characteristic of trisomy 21. It is more commonly associated with other genetic conditions.
D. An inversion of the foot (clubfoot) is not a specific finding for trisomy 21. While some infants with trisomy 21 might have foot deformities, this is not a defining characteristic.
Correct Answer is C
Explanation
A. Uterine contractions lasting 30 to 45 seconds
Rationale: Uterine contractions lasting 30 to 45 seconds are within the expected range for the latent phase of labor. This duration indicates that contractions are occurring but are not too frequent or too prolonged, which is typical for this stage of labor.
B. Uterine contractions every 6 min
Rationale: Contractions every 6 minutes are also typical for the latent phase of labor, where contractions are still becoming more frequent as labor progresses. This frequency does not suggest fetal distress or a significant risk to the fetus.
C. Recurrent variable deceleration of the FHR
Rationale: Recurrent variable decelerations in fetal heart rate (FHR) indicate that the fetus might be experiencing umbilical cord compression. This finding suggests a risk to the fetus, as it can be associated with reduced oxygenation and may require intervention to manage labor and optimize fetal well-being.
D. Moderate variability of the FHR
Rationale: Moderate variability in FHR is an indication of a well-oxygenated fetus and a healthy autonomic nervous system. This is a reassuring sign of fetal well-being rather than a risk.
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