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 B
Explanation
Choice A rationale
Retained tissue can cause postpartum hemorrhage, but with a firm uterus and no other signs of retained placenta, this is less likely the cause here.
Choice B rationale
Trauma is the most likely cause of increased bleeding in this scenario. The prolonged oxytocin induction and macrosomic infant suggest a higher risk of lacerations or uterine atony
despite the firm uterus.
Choice C rationale
Thrombin disorders cause bleeding due to clotting issues. However, this patient shows signs of active bleeding and clotting, making this less likely.
Choice D rationale
Uterine atony, indicated by a soft, boggy uterus, is a common cause of postpartum hemorrhage, but in this case, the uterus is firm, so it's less likely to be the cause.
Correct Answer is D
Explanation
Choice A rationale
Numbness in the toes and heel might suggest nerve involvement but is not a typical sign of deep vein thrombosis (DVT), which involves the veins, not nerves.
Choice B rationale
Pain relieved by dorsiflexion (positive Homan's sign) is not reliable for diagnosing DVT. This symptom is outdated and not considered a definitive sign.
Choice C rationale
Spider-like and purple veins suggest superficial varicose veins, not deep vein thrombosis, which affects deeper veins and presents differently.
Choice D rationale
Swelling, redness, and warmth in the calf are classic signs of DVT due to the inflammation and obstruction of deep veins. These symptoms should prompt immediate medical evaluation and intervention. .