A preterm labor client at 30 weeks' gestation reported rupture of membranes 4 hours ago. This was confirmed on examination. The nurse prepares to administer IM dexamethasone. When the client asks why she is receiving the drug, the nurse replies:
To help stop your labor contractions.
To prevent an infection in your uterus.
To help mature your baby's lungs.
To decrease the pain from the contractions.
To decrease the pain from the contractions.
The Correct Answer is C
Choice A rationale
Dexamethasone does not directly stop labor contractions; instead, it is used to enhance fetal lung maturity.
Choice B rationale
Dexamethasone is not for infection prevention; antibiotics are used for that purpose in cases of premature rupture of membranes.
Choice C rationale
Dexamethasone is administered to enhance fetal lung maturity, reducing the risk of respiratory distress syndrome in preterm infants.
Choice D rationale
Dexamethasone is not used for pain relief in preterm labor; other medications are prescribed for pain management.
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Correct Answer is D
Explanation
Choice A rationale
Reflexes of 3+ indicate hyperreflexia, common in pre-eclampsia, but not necessarily critical. Monitoring is essential but not an emergency.
Choice B rationale
Urinary output of 30 mL/hr is within the acceptable range but requires monitoring for any changes. It's not a critical alert.
Choice C rationale
A respiratory rate of 16 rpm is normal and does not indicate immediate risk requiring physician notification.
Choice D rationale
Serum magnesium level of 10 mg/dL is significantly high, indicating potential toxicity. Immediate physician notification is critical to adjust magnesium sulfate administration.
Correct Answer is C
Explanation
Choice A rationale
Magnesium sulfate is primarily used for neuroprotection in preterm infants and to prevent seizures in severe preeclampsia, not as a first-line tocolytic for preterm labor.
Choice B rationale
Morphine sulfate is an opioid analgesic used for pain management, not for inhibiting preterm labor contractions.
Choice C rationale
Terbutaline is a beta-agonist used as a tocolytic to relax uterine muscles and delay preterm labor. It helps decrease the intensity and frequency of contractions, making it suitable for managing preterm labor.
Choice D rationale
Betamethasone is a corticosteroid used to accelerate fetal lung maturity in preterm labor, not for direct contraction inhibition.