PLAB PLAB Obstetrics & Gynecology

Question 1

A 28-year-old woman at 32 weeks gestation presents with sudden-onset severe headache, visual disturbances, and BP of 160/110 mmHg. What is the most likely diagnosis?

Accepted Answer

Pre-eclampsia

Answer

Migraine

Answer

Tension headache

Answer

Intracranial hemorrhage

Question 2

Which medication is first-line for cervical ripening and labor induction in a patient with an unfavorable cervix at term?

Accepted Answer

Dinoprostone (prostaglandin E2)

Answer

Oxytocin IV infusion

Answer

Misoprostol

Answer

Mifepristone

Question 3

A 35-year-old woman presents with sudden severe lower abdominal pain, shoulder tip pain, and a positive urine pregnancy test. Ultrasound shows no intrauterine pregnancy. What is the most likely diagnosis?

Accepted Answer

Ruptured ectopic pregnancy

Answer

Ovarian torsion

Answer

Placenta previa

Answer

Appendicitis

Question 4

Which investigation is most useful to confirm ovarian torsion in a woman presenting with acute unilateral pelvic pain?

Accepted Answer

Transvaginal ultrasound with Doppler

Answer

Serum CA-125

Answer

Diagnostic laparoscopy

Answer

CT abdomen and pelvis

Question 5

A primigravida at 38 weeks presents with mild contractions and her cervix is 4 cm dilated, fully effaced, with the fetal head at 0 station. What stage of labor is she in?

Accepted Answer

Active phase of first stage

Answer

Latent phase of first stage

Answer

Second stage

Answer

Third stage

Question 6

Which antibiotic is recommended for Group B Streptococcus (GBS) prophylaxis during labor in penicillin-allergic patients with low anaphylaxis risk?

Accepted Answer

Cefazolin

Answer

Clindamycin

Answer

Vancomycin

Answer

Erythromycin