The principal risk factor predictive of preterm birth is:
History of preterm birth.
Low prepregnancy weight.
Smoking during pregnancy.
Obesity.
The Correct Answer is A
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.
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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.
Correct Answer is B
Explanation
Choice A rationale
While infection prevention is vital, ensuring breathing function is more critical after ASP.
Choice B rationale
ASP affects the respiratory system severely; thus, restoring normal breathing is a primary goal.
Choice C rationale
Gastrointestinal function is less immediately affected by ASP compared to respiratory issues.
Choice D rationale
Voiding without pain is important, but respiratory stability takes precedence.