A client is scheduled for an external version.
The nurse would expect to prepare which of the following medications to be administered prior to the procedure?
Oxytocin.
Methylergonovine.
Betamethasone.
Terbutaline.
The Correct Answer is D
Choice A rationale
Oxytocin is used to induce or augment labor, not typically used before an external version, which is a procedure to turn a breech baby to a head-down position.
Choice B rationale
Methylergonovine is used to prevent or control postpartum hemorrhage by inducing strong uterine contractions, not indicated before an external version.
Choice C rationale
Betamethasone is a corticosteroid used to accelerate fetal lung maturity in preterm labor, not required for an external version.
Choice D rationale
Terbutaline is a tocolytic agent used to relax the uterus, making it easier to manipulate the fetus during the external version procedure.
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Correct Answer is B
Explanation
Choice A rationale
Magnesium sulfate is not given to increase diuresis; this is not its primary effect and is incorrect in the context of treating preeclampsia.
Choice B rationale
Magnesium sulfate is administered to prevent seizures in patients with preeclampsia. It acts as a central nervous system depressant and helps in preventing eclampsia.
Choice C rationale
Although magnesium sulfate may have a mild effect on reducing blood pressure due to its vasodilatory properties, this is not its primary purpose in the management of preeclampsia.
Choice D rationale
Magnesium sulfate is not used to slow the process of labor; its main role is seizure prophylaxis in preeclampsia.
Correct Answer is A
Explanation
Choice A rationale
History of preterm birth is the principal risk factor for predicting preterm birth. Previous preterm births significantly increase the likelihood of subsequent preterm deliveries due to
underlying etiological factors.
Choice B rationale
Low prepregnancy weight is a risk factor but not as significant as a history of preterm birth. It can contribute to complications in pregnancy but does not have the same predictive value.
Choice C rationale
Smoking during pregnancy increases the risk of preterm birth but is not the principal risk factor. It is a modifiable behavior that contributes to poor pregnancy outcomes.
Choice D rationale
Obesity can impact pregnancy outcomes but is not the principal risk factor for preterm birth. It is associated with other complications rather than directly predicting preterm delivery.