A woman at 39 weeks gestation with a history of preeclampsia is admitted to the labor and delivery. She suddenly experiences increased contraction frequency of every 1 to 2 minutes, dark red bleeding and a tense, very painful abdomen. The nurse suspects the onset of:
Eclampsia
Abruptio placentae
Rupture of the uterus
Placenta previa
The Correct Answer is B
A. Eclampsia. Eclampsia is characterized by seizures in a patient with preeclampsia, but it does not cause dark red vaginal bleeding, a tense abdomen, or increased contraction frequency. While eclampsia is a serious complication, the symptoms described are more indicative of placental abruption.
B. Abruptio placentae. Abruptio placentae (placental abruption) occurs when the placenta prematurely separates from the uterine wall, causing painful, dark red vaginal bleeding, frequent contractions, and a tense, rigid uterus (uterine hypertonicity). This is a medical emergency because it can lead to severe fetal distress, maternal hemorrhage, and disseminated intravascular coagulation (DIC).
C. Rupture of the uterus. Uterine rupture presents with sudden, severe abdominal pain, loss of fetal station, and fetal distress, often with maternal hemodynamic instability. While it is an emergency, it is more commonly associated with a history of prior uterine surgery (such as a cesarean section), which is not mentioned in this case.
D. Placenta previa. Placenta previa presents with painless, bright red vaginal bleeding, not dark red bleeding with severe pain and uterine hypertonicity. Placenta previa is caused by an abnormally implanted placenta over the cervix, but it does not typically cause a firm, tense uterus or excessive contractions.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Uterine prolapse. Uterine prolapse occurs when the uterus descends into or outside the vagina, usually postpartum due to weakened pelvic support. It does not present with sudden, severe pain or fetal heart rate abnormalities during labor.
B. Uterine rupture. A tearing sensation, sudden severe pain, fetal heart rate abnormalities, pallor, and diaphoresis are hallmark signs of uterine rupture. This is a life-threatening emergency where the uterine wall tears, often due to prior cesarean scars, excessive oxytocin use, or grand multiparity. Immediate intervention, including emergency surgery, is required to prevent maternal and fetal death.
C. Precipitous labor. Precipitous labor is rapid labor and delivery within three hours and is not associated with severe, tearing pain. While it can cause fetal distress, it does not typically involve uterine rupture symptoms.
D. Amniotic fluid embolus. An amniotic fluid embolus presents with sudden respiratory distress, hypotension, and cardiovascular collapse due to amniotic fluid entering the maternal circulation. It does not typically cause localized severe abdominal pain or fetal distress due to uterine rupture.
Correct Answer is ["A","C"]
Explanation
A. Pitocin. Pitocin (oxytocin) is the primary medication used for labor induction. It stimulates uterine contractions to initiate or augment labor. It is given intravenously (IV) and carefully titrated to avoid complications like uterine tachysystole and fetal distress.
B. Methergine. Methergine (methylergonovine) is not used for labor induction. It is a uterotonic medication used postpartum to prevent or treat postpartum hemorrhage by causing sustained uterine contractions. It is contraindicated in pregnancy due to the risk of excessive uterine contractions and hypertension.
C. Misoprostol. Misoprostol (Cytotec) is a prostaglandin used for cervical ripening and labor induction. It is administered vaginally or orally to soften the cervix and stimulate contractions before starting Pitocin. It is commonly used in women with an unfavorable cervix.
D. Magnesium Sulfate. Magnesium sulfate is not used for labor induction. It is primarily used for seizure prevention in preeclampsia/eclampsia and to stop preterm labor (tocolysis). It actually relaxes the uterus, which is the opposite of what is needed for induction.
E. Betamethasone. Betamethasone is a corticosteroid used to accelerate fetal lung maturity in preterm labor (before 34 weeks). It has no role in labor induction.
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