The nurse who is assessing a G2 P1 client palpates the fundal height at the location noted on the picture below (near the umbilicus). The nurse concludes that the fetus is equal to which of the following gestational ages?
16 weeks.
20 weeks.
24 weeks.
28 weeks.
The Correct Answer is B
Choice A rationale
At 16 weeks, the fundal height is typically below the umbilicus. This location is more indicative of a fetus at around 20 weeks.
Choice B rationale
At 20 weeks, the fundal height is usually at the level of the umbilicus, indicating this is the correct gestational age.
Choice C rationale
At 24 weeks, the fundal height is usually above the umbilicus, suggesting a more advanced gestation than the picture indicates.
Choice D rationale
At 28 weeks, the fundal height is significantly above the umbilicus, making this option incorrect for the given scenario.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
Fetal nutrition and excretion are carried out by the placenta. This statement is correct. The placenta provides essential nutrients to the fetus and removes waste products from fetal blood.
Choice B rationale
Fetal respirations are carried out by the placenta. This statement is correct. The placenta facilitates gas exchange, providing oxygen to the fetus and removing carbon dioxide.
Choice C rationale
The placenta filters harmful substances from maternal blood. This statement is incorrect. While the placenta provides some barrier function, it does not filter all harmful substances from maternal blood, and certain drugs and toxins can cross the placental barrier and affect the fetus.
Choice D rationale
The placenta receives maternal blood from the uterine arteries. This statement is correct. Maternal blood flows to the placenta via the uterine arteries, supplying oxygen and nutrients to the fetal side of the placenta.
Correct Answer is A
Explanation
Choice A rationale
Administering betamethasone 12 mg IM helps accelerate fetal lung maturity by stimulating the production of surfactant. This is crucial for a preterm baby, as immature lungs are one of the biggest risks in preterm labor. Administering betamethasone can significantly improve neonatal outcomes by reducing respiratory distress syndrome and other complications related to prematurity.
Choice B rationale
Preparing the client for immediate delivery is not the first action as the primary goal in managing preterm labor with an L/S ratio of 1: is to delay labor and enhance fetal lung maturity. Betamethasone administration is prioritized to maximize fetal lung development before considering delivery.
Choice C rationale
Administering hydralazine 25 mg IV is used to manage hypertension and is unrelated to enhancing fetal lung maturity in preterm labor. It is not indicated in this situation as the primary concern is not managing blood pressure.
Choice D rationale
Infusing a bolus of IV fluid might be used to manage preterm labor but does not directly address the need to improve fetal lung maturity. The main priority is administering steroids like betamethasone to expedite fetal lung development.
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