Which of the following are indications for performing a contraction stress test in pregnancy?
Choices:
Intrauterine growth restriction.
A normal biophysical profile.
Placental abruption.
Decreased fetal movements.
Greater than 42 weeks gestation.
Correct Answer : A,D,E
Choice A rationale
Intrauterine growth restriction (IUGR) is an indication for a contraction stress test. It assesses fetal response to uterine contractions, identifying potential placental insufficiency.
Choice B rationale
A normal biophysical profile indicates no need for a contraction stress test. It assesses fetal well-being, and normal results suggest no immediate concerns.
Choice C rationale
Placental abruption is a contraindication for a contraction stress test. Inducing contractions can exacerbate placental separation, risking maternal and fetal health.
Choice D rationale
Decreased fetal movements warrant a contraction stress test. It evaluates fetal response to contractions, detecting possible hypoxia or compromised fetal condition.
Choice E rationale
Post-term pregnancy (>42 weeks) is an indication for a contraction stress test. It assesses placental function and fetal well-being as prolonged gestation increases risks.
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Related Questions
Correct Answer is C
Explanation
Choice A rationale
Administering oxytocin during a contraction stress test is to assess uteroplacental insufficiency, not to identify pain tolerance. The test evaluates fetal response to contractions.
Choice B rationale
Positive contraction stress tests are associated with poor fetal outcomes, indicating fetal distress during contractions due to inadequate placental perfusion.
Choice C rationale
A negative result in a contraction stress test indicates adequate placental function and fetal well-being, suggesting the fetus can tolerate labor without distress.
Choice D rationale
A positive test result suggests potential fetal compromise, including increased risk of fetal death, growth restriction, low Apgar scores, and need for C-section or resuscitation.
Correct Answer is B
Explanation
Choice A rationale
Misoprostol (Cytotec) stimulates smooth muscle contraction, including the gastrointestinal tract, leading to increased bowel motility and diarrhea. Normal bowel frequency ranges from 3 times per day to 3 times per week.
Choice B rationale
Methergine (Methylergonovine) constricts blood vessels, leading to increased blood pressure and a risk of hypertensive crisis. Normal blood pressure is around 120/80 mmHg.
Choice C rationale
Hemabate (carboprost tromethamine) is a prostaglandin analog, which can cause bronchoconstriction, exacerbating asthma symptoms in patients. Normal peak flow ranges from 400-700 L/min.
Choice D rationale
Oxytocin (Pitocin) can cause fever, chills, and hypotension due to its effects on vascular smooth muscle and thermoregulatory centers. Normal body temperature is around 37°C (98.6°F).
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