U2 Ob - Et 32 Obstetric Procedures: Vbac

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| By Obgynume
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Obgynume
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Quizzes Created: 8 | Total Attempts: 14,399
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  • 1/10 Questions

    When should discussions about VBAC begin with a patient who has had a prior Cesarean delivery?

    • Preconception
    • At an early prenatal visit
    • In the third trimester
    • Two weeks before delivery
    • Upon admission to the hospital in active labor
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About This Quiz

This quiz focuses on VBAC (Vaginal Birth After Cesarean) procedures, discussing the ideal timing for consultations, contraindications, facility requirements, and potential complications. It is designed to assess and enhance knowledge critical for obstetric care.

U2 Ob - Et 32 Obstetric Procedures: Vbac - Quiz

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  • 2. 

    Which of the following are contraindications to VBAC?  (There may be more than one answer.)

    • Previous vaginal delivery

    • Adequate pelvis

    • Prior classical uterine incision

    • Multiple uterine surgeries

    • Contraindications to vaginal birth

    • A, B, and C

    • B, C, E

    • C, D, E

    Correct Answer
    A. C, D, E
    Explanation
    The correct answer is C, D, E. Contraindications to VBAC (vaginal birth after cesarean) include a prior classical uterine incision, multiple uterine surgeries, and contraindications to vaginal birth. These factors increase the risk of uterine rupture during a VBAC attempt and may require a repeat cesarean delivery instead. Previous vaginal delivery and an adequate pelvis are not contraindications to VBAC.

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  • 3. 

    Which of the following are requirements of the facility at which a patient will deliver to offering a VBAC?

    • In house obstetrician

    • 1:1 nurse to patient ratio

    • Obstetrician skilled in emergency Cesarean delivery in house

    • Anesthesiologist within 30 minutes drive time to hospital

    • Internal fetal monitoring

    Correct Answer
    A. Obstetrician skilled in emergency Cesarean delivery in house
    Explanation
    In order for a facility to offer a VBAC (Vaginal Birth After Cesarean), it is necessary to have an obstetrician skilled in emergency Cesarean delivery in-house. This is because in the event of any complications or emergencies during the VBAC, the obstetrician should be capable of performing a Cesarean delivery immediately. Having this requirement ensures the safety and well-being of both the mother and the baby during the delivery process.

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  • 4. 

    A 25 year-old G3P2002 presents to the hospital in active labor.  She planned on attempting a trial of labor.  Assuming a spontaneous vaginal delivery, which of the following risks of a Cesarean delivery will this patient have lowered most significantly?

    • Uterine rupture

    • Death

    • Uterine inversion

    • Hemorrhage

    • Cervical laceration

    Correct Answer
    A. Hemorrhage
    Explanation
    In a trial of labor, the patient is attempting a vaginal delivery after a previous cesarean section. This means that the patient has already had a cesarean delivery in the past, which increases the risk of uterine rupture during a subsequent vaginal delivery. However, in this case, the patient is at a lower risk of uterine rupture because she is only in active labor and has not yet delivered. On the other hand, hemorrhage is a common complication of both vaginal and cesarean deliveries. Therefore, the patient will have the risk of hemorrhage lowered most significantly by attempting a trial of labor.

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  • 5. 

    A 32 year-old G2P1 had a prior Cesarean delivery due to a breech presentation of the fetus.  She is attempting a trial of labor in a major metropolitan university hospital.  She is currently 6 cm dilated, 100% effaced and the fetus is at 0 station.  She is also having contractions every 3 – 4 minutes according to external monitoring.  The fetal heart tracing has shown numerous accelerations and no decelerations since her admission.  The monitor suddenly starts to show prolonged fetal bradycardia that does not resolve with a change in maternal position or the administration of oxygen to the patient.  Which of the following has most likely occurred?

    • Uterine rupture

    • Intrauterine infection

    • Cord prolapse

    • Pulmonary embolism

    • Impending intrauterine fetal demise

    Correct Answer
    A. Uterine rupture
    Explanation
    The sudden onset of prolonged fetal bradycardia that does not resolve with a change in maternal position or the administration of oxygen suggests uterine rupture. Uterine rupture is a rare but serious complication of labor after a previous cesarean delivery. It occurs when there is a tear in the wall of the uterus, which can lead to fetal distress and compromise. In this case, the patient's history of a prior cesarean delivery and the presence of contractions every 3-4 minutes indicate that she is in active labor, increasing the risk of uterine rupture.

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  • 6. 

    Which of the following should not be used in a patient attempting a VBAC?

    • Pitocin

    • Continuous lumbar epidural anesthesia

    • IV morophine

    • Pencillin

    • Misoprostol

    Correct Answer
    A. Misoprostol
    Explanation
    Misoprostol should not be used in a patient attempting a VBAC (Vaginal Birth After Cesarean). Misoprostol is a medication that is commonly used to induce labor or ripen the cervix. However, it is contraindicated in patients attempting a VBAC because it can increase the risk of uterine rupture. Uterine rupture is a serious complication that can occur during labor and delivery, and it is more likely to occur in patients who have had a previous cesarean section. Therefore, it is important to avoid using medications like misoprostol that can increase the risk of uterine rupture in patients attempting a VBAC.

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  • 7. 

    Which of the following decreases the chances of having a successful VBAC?

    • Recurrent indication for initial Cesarean delivery

    • Gestational age greater than 40 weeks

    • Induction of labor

    • Maternal obesity

    • All of the above

    Correct Answer
    A. All of the above
    Explanation
    All of the factors mentioned in the options can decrease the chances of having a successful VBAC (Vaginal Birth After Cesarean). Recurrent indication for initial Cesarean delivery means that if a woman has had multiple previous Cesarean deliveries, it reduces the likelihood of a successful VBAC. Gestational age greater than 40 weeks can increase the risk of complications during labor and delivery, making a VBAC less likely. Induction of labor, especially with medications like oxytocin, can increase the chances of uterine rupture, which is a major concern in VBAC. Maternal obesity is associated with an increased risk of complications during pregnancy and delivery, including a higher likelihood of Cesarean delivery. Therefore, all of these factors can individually or collectively decrease the chances of a successful VBAC.

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  • 8. 

    A 22 year-old G5P2113 with a history of HIV wants to discuss VBAC as an option since she has had two prior spontaneous vaginal deliveries and her last son was delivered via Cesarean delivery due to breech presentation.  Which of the following patient factors increases her chances of a successful VBAC?

    • Prior spontaneous vaginal delivery

    • Multiparity

    • HIV status

    • Young maternal age

    • Short interpregnancy interval

    Correct Answer
    A. Prior spontaneous vaginal delivery
    Explanation
    Prior spontaneous vaginal delivery increases the chances of a successful VBAC because it indicates that the patient has previously had a successful vaginal delivery without complications. This suggests that her pelvis is adequate for vaginal delivery and that she may have a lower risk of complications during labor.

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  • 9. 

    True or False: Suspected macrosomia should not preclude a trial of labor for a patient who has undergone a prior Cesarean delivery.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Suspected macrosomia refers to a condition where the fetus is estimated to have a larger than average birth weight. This question is asking whether a trial of labor should be ruled out for a patient who has previously had a Cesarean delivery and is suspected to have macrosomia. The correct answer is true, indicating that suspected macrosomia should not automatically prevent a trial of labor in this scenario. This is because there are various factors that need to be considered, such as the patient's overall health, the size of the baby, and the previous Cesarean delivery's reason. Each case should be evaluated individually to determine the safest course of action.

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  • 10. 

    True or False: Most maternal morbidity that occurs during a trial of labor occurs when repeat Cesarean delivery become necessary.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Most maternal morbidity that occurs during a trial of labor occurs when repeat Cesarean delivery becomes necessary. This is because repeat Cesarean deliveries carry a higher risk of complications compared to vaginal deliveries. These complications can include infection, blood loss, injury to surrounding organs, and longer recovery time. Therefore, it is true that most maternal morbidity during a trial of labor occurs when repeat Cesarean delivery becomes necessary.

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Quiz Review Timeline (Updated): Sep 20, 2023 +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Sep 20, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Jan 07, 2013
    Quiz Created by
    Obgynume

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