A nurse is admitting a patient who is at 30 weeks of gestation and is in preterm labor.The patient has a new prescription for betamethasone and asks the nurse about the purpose of this medication. Which explanation should the nurse provide?
“It increases the fetal heart rate.”.
“It promotes fetal lung maturity.”.
“It is used to stop preterm labor contractions.”.
“It halts cervical dilation.”.
The Correct Answer is B
Choice A rationale
Betamethasone does not typically increase the fetal heart rate14.
Choice B rationale
Betamethasone is often given to pregnant women who are at risk of preterm birth to promote fetal lung maturity. It helps speed up the development of the baby’s lungs and other organs14.
Choice C rationale
Betamethasone is not used to stop preterm labor contractions14.
Choice D rationale
Betamethasone does not halt cervical dilation14.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A rationale
The Babinski reflex is a normal reflex in infants that disappears by 12 months of age. It involves fanning out of the toes when the sole of the foot is stroked, and it doesn’t promote latching during breastfeeding.
Choice B rationale
The stepping reflex is a primitive reflex that makes newborns appear to take steps or dance when held upright with their feet touching a solid surface. It doesn’t promote latching during breastfeeding.
Choice C rationale
The rooting reflex helps promote latching during breastfeeding. When the corner of the baby’s mouth is touched, the baby will turn his or her head and open his or her mouth to follow and “root” in the direction of the stroking. This helps the baby find the breast or bottle to start feeding.
Choice D rationale
The Moro reflex, also known as the startle reflex, involves the baby throwing back his or her head, extending out the arms and legs, crying, then pulling the arms and legs back in. It doesn’t promote latching during breastfeeding.
Correct Answer is A
Explanation
Choice A rationale
Cervical dilation is a positive sign of labor. During labor, the cervix dilates to allow the baby to pass through the birth canal. This is a definitive sign that labor is occurring.
Choice B rationale
Amniotic fluid in the vaginal vault could indicate rupture of membranes, but it does not confirm labor. Labor may or may not be present when the membranes rupture.
Choice C rationale
Pain above the umbilicus is not a typical sign of labor. Labor pain is usually felt in the lower back and lower abdomen.
Choice D rationale
Brownish vaginal discharge could be a sign of “bloody show,” which can occur as labor approaches. However, it does not confirm that labor is occurring.
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