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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?

A.

Magnesium sulfate.

B.

Morphine sulfate.

C.

Terbutaline.

D.

Betamethasone.

Answer and Explanation

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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View Related questions

Correct Answer is ["B","C","E"]

Explanation

Choice A rationale

Pumping up the vacuum manually to the pressure indicated on the pump is a standard procedure but doesn't directly minimize liability.

Choice B rationale

Recognizing cup detachment (pop off) as a warning sign is critical, as it indicates excessive force or poor positioning, which can lead to fetal or maternal injury.

Choice C rationale

Limiting the cup's attachment to the fetal head to 5 to 10 minutes reduces the risk of scalp injury and other complications, thus minimizing liability.

Choice D rationale

Timing the procedure from insertion of the cup into the vagina until the birth is a guideline but doesn't specifically address liability concerns.

Choice E rationale

Releasing pressure between contractions prevents continuous suction on the fetal head, reducing the risk of injury and thereby minimizing liability.

Correct Answer is D

Explanation

Choice A rationale

Placental abruption involves the detachment of the placenta from the uterine wall before delivery, causing bleeding, abdominal pain, and uterine tenderness. It does not typically cause dyspnea, hypotension, frothy sputum, or loss of consciousness.

Choice B rationale

Uterine rupture is a tear in the uterine wall, often in a scarred uterus. Symptoms include severe abdominal pain, abnormal fetal heart rate, and vaginal bleeding. It can cause shock, but not frothy sputum or sudden dyspnea.

Choice C rationale

Uterine inversion occurs when the uterus turns inside out, often during placental delivery. It leads to pain, hemorrhage, and shock. Like uterine rupture, it does not cause frothy sputum or sudden dyspnea.

Choice D rationale

Anaphylactoid syndrome (amniotic fluid embolism) occurs when amniotic fluid enters the maternal circulation, causing an anaphylactic reaction. Symptoms include sudden dyspnea, hypotension, frothy sputum, and loss of consciousness, fitting the scenario described.

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