ABOG Obstetric Complications & Emergency Management

Question 1

A patient delivers vaginally and has 1,200 mL blood loss within 1 hour of birth with hemodynamic instability. What is the FIRST-LINE uterotonic agent for postpartum hemorrhage?

Accepted Answer

Oxytocin IV infusion

Answer

Oxytocin is the first-line uterotonic for postpartum hemorrhage due to its rapid onset, efficacy, and safety profile compared to other agents.

Question 2

During vaginal delivery, shoulder dystocia is encountered. Which maneuver should be attempted FIRST after calling for help and applying suprapubic pressure?

Accepted Answer

McRoberts maneuver

Answer

McRoberts maneuver (hyperflexion of maternal thighs) combined with suprapubic pressure is the recommended first step for shoulder dystocia, resolving up to 50% of cases.

Question 3

A G2P1 at 38 weeks presents with a generalized tonic-clonic seizure, BP 160/110, and proteinuria. After securing the airway, what is the immediate pharmacologic priority?

Accepted Answer

Magnesium sulfate IV loading dose

Answer

Magnesium sulfate is the drug of choice for eclamptic seizure prophylaxis and treatment, given as a 4–6 g IV loading dose followed by 1–2 g/hr maintenance.

Question 4

A patient with complete placenta previa is admitted at 29 weeks with painless vaginal bleeding that has now stopped. What is the most appropriate management?

Accepted Answer

Expectant management with hospitalization and antenatal corticosteroids

Answer

Expectant management with hospitalization, corticosteroids for fetal lung maturity, and close monitoring is appropriate for stable previa remote from term, aiming to prolong gestation.

Question 5

A patient with prior classical cesarean scar presents at 32 weeks with sudden severe abdominal pain, fetal bradycardia, and loss of fetal station on exam. What is the most likely diagnosis?

Accepted Answer

Uterine rupture

Answer

Uterine rupture classically presents with sudden abdominal pain, fetal heart rate abnormalities, loss of fetal station, and hemodynamic instability, especially in patients with a prior uterine scar.

(ABOG) American Board of Obstetrics & Gynecology Practice Test

(ABOG) American Board of Obstetrics & Gynecology Practice Test

ABOG Obstetric Complications & Emergency Management