A client at 28 weeks' gestation with intact membranes is admitted with the following findings: contractions every 5 minutes lasting 60 seconds, 3 cm dilated, 80% effaced.
Which of the following medications will the obstetrician likely order?
Magnesium sulfate.
Morphine sulfate.
Terbutaline.
Betamethasone.
The Correct Answer is C
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.
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Correct Answer is A
Explanation
Choice A rationale
Massaging the fundus can help contract the uterus and reduce bleeding. Ensuring IV access is crucial for administering medications rapidly. Methylergonovine (Methergine) and oxytocin help stimulate uterine contractions and reduce postpartum hemorrhage, which can be life-threatening.
Choice B rationale
Administering pain medication might be necessary, but it doesn't address the immediate issue of uterine atony and hemorrhage. Surgical intervention is a last resort and should be prepared for only if medical management fails.
Choice C rationale
Reassessing vital signs and monitoring is important, but it doesn't provide an immediate solution to the bleeding and uterine atony. Immediate action to contract the uterus is crucial.
Choice D rationale
Contacting the attending physician is important, but immediate intervention to stop the bleeding and address uterine atony is critical to prevent further complications.
Correct Answer is B
Explanation
Choice A rationale
Administering oxytocin during shoulder dystocia can exacerbate the problem by increasing uterine contractions, making it harder to deliver the baby's shoulder.
Choice B rationale
Flexing the client's thighs sharply toward her abdomen, known as the McRoberts maneuver, helps to widen the pelvis and can often resolve shoulder dystocia by changing the angle of the pelvic bones.
Choice C rationale
While applying oxygen is a standard practice to improve maternal and fetal oxygenation, it does not specifically address shoulder dystocia and is not a primary intervention.
Choice D rationale
Applying downward pressure on the fundus is contraindicated as it can worsen shoulder dystocia by further impacting the shoulder against the pelvic bone.