A nurse is preparing to administer betamethasone 12mg IM to a client at 32 weeks gestation at risk for preterm delivery.
Betamethasone is available as 6mg/ml. How many ml will the nurse prepare for injection? (Use a leading zero, if it applies. Do not use a trailing zero)
Do not use a trailing zero)
Step 2 is: 12 รท 6 = 2 ml. Answer: 2 ml
The Correct Answer is A
Step 1 is: 12 mg ÷ 6 mg/ml.
Step 2 is: 12 ÷ 6 = 2 ml. Answer: 2 ml
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Correct Answer is A
Explanation
Choice A rationale
Betamethasone is a corticosteroid that accelerates fetal lung maturity by increasing the production of surfactant, which reduces respiratory distress syndrome in preterm infants.
Choice B rationale
While betamethasone can cause transient increases in fetal heart rate, its primary purpose is not to increase fetal heart rate. Its role is in enhancing lung maturity.
Choice C rationale
Betamethasone does not directly increase amniotic fluid levels. Its main function is in the maturation of fetal lungs.
Choice D rationale
Betamethasone is not used to stop preterm labor contractions. It is used to accelerate fetal lung development in preterm labor cases.
Correct Answer is D
Explanation
Choice A rationale
GBS can be transmitted to the baby during both vaginal and cesarean deliveries if the mother is colonized with the bacteria. It is not limited to cesarean sections, hence why appropriate screening and treatment are essential.
Choice B rationale
GBS, although often harmless in the general population, can cause severe infections in newborns. This bacterium can be a source of severe neonatal infections like sepsis, pneumonia, and meningitis, necessitating preventive measures during pregnancy and delivery.
Choice C rationale
Screening for GBS is typically performed between 35 and 37 weeks of gestation, not at the first prenatal visit. This timing ensures accurate detection of the bacteria closer to the time of delivery.
Choice D rationale
Intravenous antibiotics during labor are recommended for mothers who test positive for GBS to prevent transmission to the baby. This intervention significantly reduces the risk of neonatal GBS infection.