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.
Free Nursing Test Bank
- Free Pharmacology Quiz 1
- Free Medical-Surgical Quiz 2
- Free Fundamentals Quiz 3
- Free Maternal-Newborn Quiz 4
- Free Anatomy and Physiology Quiz 5
- Free Obstetrics and Pediatrics Quiz 6
- Free Fluid and Electrolytes Quiz 7
- Free Community Health Quiz 8
- Free Promoting Health across the Lifespan Quiz 9
- Free Multidimensional Care Quiz 10
View Related questions
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.
Correct Answer is D
Explanation
Choice A rationale
A respiratory rate of 18 breaths/min is normal and does not indicate magnesium toxicity or the need for calcium gluconate.
Choice B rationale
Urinary output of 30 mL/hr is within the acceptable range and does not suggest magnesium toxicity. This indicates adequate renal function.
Choice C rationale
Patellar reflexes rated at one indicate mild hyporeflexia, which can be a side effect of magnesium sulfate but does not necessitate immediate intervention.
Choice D rationale
Serum magnesium level of 10 mg/dL is significantly elevated, indicating magnesium toxicity. Calcium gluconate is the antidote for magnesium toxicity and should be administered
promptly to prevent severe complications.