A nurse is assisting in the care of a client who is scheduled for a cesarean birth based on the fetal lungs having reached maturity. Which of the following findings indicates that the fetal lungs are mature?
Phosphatidylglycerol (PG) absent
Nonstress test is reactive
Lecithin/sphingomyelin (L/S) ratio of 2:1
Biophysical profile score of 8
The Correct Answer is C
Choice A rationale: The presence of phosphatidylglycerol (PG) in the amniotic fluid is another indicator of fetal lung maturity. The absence of PG is associated with an increased risk of respiratory distress syndrome (RDS) in the newborn.
Choice B rationale: A nonstress test is a test performed during pregnancy to evaluate the fetal heart rate in response to fetal movement. It is not directly related to assessing fetal lung maturity.
Choice C rationale: The L/S ratio is an important indicator of fetal lung maturity. Lecithin and sphingomyelin are two surfactants present in the lungs, and the ratio of these two substances increases as the fetal lungs mature. An L/S ratio of 2:1 or greater is considered an indication of lung maturity and suggests that the newborn should be able to breathe adequately after birth.
Choice D rationale: The biophysical profile (BPP) is a prenatal ultrasound assessment of the fetus, which includes evaluating fetal movements, breathing, heart rate, and amniotic fluid volume. While a BPP of 8 is a reassuring score, it does not provide direct information about fetal lung maturity.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale:
Placing only part of the nipple in the baby's mouth may result in an ineffective latch, leading to breastfeeding difficulties.
Choice B rationale:
Placing the nipple and 2 to 3 cm of areolar tissue around the nipple into the baby’s mouth aids in adequately compressing the milk ducts. This placement decreases stress on the nipple and prevents cracking and soreness.
Choice C rationale:
Placing the entire areolar is not appropriate.
Choice D rationale:
While babies do have natural instincts to breastfeed, it is essential to provide the mother with specific guidance on achieving a proper latch to ensure successful breastfeeding.
Correct Answer is A
Explanation
Choice A rationale: Misoprostol is a prostaglandin analog and is contraindicated for use during labor at 32 weeks of gestation as it can lead to uterine hyperstimulation, which may pose a risk to the preterm fetus.
Choice B rationale: Folic acid is a vitamin supplement and is not contraindicated during labor. However, it is typically taken earlier in pregnancy to prevent neural tube defects.
Choice C rationale: Nifedipine is a calcium channel blocker that may be used to suppress preterm labor, and it is not contraindicated at 32 weeks of gestation.
Choice D rationale: Terbutaline is a beta-adrenergic agonist that may be used to relax the uterine smooth muscles and inhibit preterm labor. It is not contraindicated at 32 weeks of gestation.
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