Operative Obstetrics Practice Questions

Q: Which of the following is NOT a criterion for the diagnosis of HELLP syndrome?

Convulsions. **Explanation:** The diagnosis of **HELLP Syndrome** is based on specific laboratory criteria rather than clinical symptoms like seizures. HELLP is an acronym representing **H**emolysis, **E**levated **L**iver enzymes, and **L**ow **P**latelets. * **Why Convulsions is the correct answer:** Convulsions (seizures) are the hallmark of **Eclampsia**, not HELLP syndrome. While HELLP syndrome often coexists with severe pre-eclampsia or eclampsia (in about 10–20% of cases), it is a distinct hematologic and hepatic complication. Seizures are not required for the diagnosis of HELLP. * **Why other options are incorrect (The Tennessee Criteria):** * **Hemolysis (Option A):** A core component. It is diagnosed by the presence of schistocytes on a peripheral smear, elevated bilirubin (>1.2 mg/dL), or low haptoglobin. * **SGOT > 72 IU/L (Option B):** Reflects "Elevated Liver enzymes." According to the Tennessee Criteria, AST (SGOT) must be ≥ 70 IU/L to qualify. * **Platelets < 100,000/mm³ (Option C):** Reflects "Low Platelets." This is the most sensitive indicator of the severity of HELLP syndrome. **High-Yield Clinical Pearls for NEET-PG:** * **Mississippi Classification:** Classifies HELLP based on platelet count (Class 1: 34 weeks or if there is maternal/fetal deterioration. * **Steroids:** While dexamethasone is used to increase platelet counts, it does not improve maternal or neonatal outcomes.

Q: Which drug is used for mid-trimester abortion?

Mifepristone. **Explanation:** **Mifepristone (Option A)** is the correct answer. It is a potent anti-progestational agent that sensitizes the myometrium to prostaglandins by blocking progesterone receptors. In mid-trimester abortions (13–24 weeks), Mifepristone is used as a pre-treatment (200 mg orally) 24–48 hours before administering prostaglandins (like Misoprostol). This combination significantly shortens the induction-to-abortion interval and increases the success rate compared to using prostaglandins alone. **Analysis of Incorrect Options:** * **Atosiban (Option B):** A competitive antagonist of oxytocin and vasopressin receptors. It is used as a **tocolytic** to suppress preterm labor, not to induce abortion. * **Valethamate (Option C):** An anticholinergic drug previously used as a cervical dilator to "speed up" the first stage of labor. Its use has largely been discontinued due to lack of proven efficacy and side effects (tachycardia, dry mouth). * **Methotrexate (Option D):** A folate antagonist used primarily for the medical management of **unruptured ectopic pregnancy** or early first-trimester medical abortions (off-label). It is not the standard of care for mid-trimester induction. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for Mid-trimester:** The combination of **Mifepristone + Misoprostol** is currently the most effective medical method. * **MTP Act (India):** Medical termination is legal up to **24 weeks** for specific categories of women (as per 2021 amendment). * **Surgical Alternative:** Dilatation and Evacuation (D&E) is the surgical method for the second trimester, though medical induction is often preferred for safety. * **Ethacridine Lactate:** Historically used for mid-trimester (extra-amniotic instillation), but now largely replaced by prostaglandins.

Q: Mini laparotomy is indicated in all the following conditions except?

Ectopic pregnancy. ### Explanation **Mini-laparotomy** is a surgical approach involving a small abdominal incision (usually 2–5 cm), typically performed for permanent sterilization or simple pelvic procedures. **1. Why Ectopic Pregnancy is the Correct Answer:** Ectopic pregnancy is generally considered a **contraindication** for mini-laparotomy. An ectopic pregnancy (especially if ruptured) is a surgical emergency that requires rapid access, excellent visualization, and space to manage potential hemorrhage. A mini-laparotomy incision is too restrictive for safe salpingectomy or salpingostomy in the presence of hemoperitoneum or pelvic adhesions. The preferred approaches are **Laparoscopy** (if hemodynamically stable) or a formal **Laparotomy** (if unstable). **2. Analysis of Incorrect Options:** * **Internal Sterilization & Tubectomy (Options B & D):** These are the primary indications for mini-laparotomy. The procedure (e.g., Pomeroy’s technique) is performed via a small suprapubic or subumbilical incision to ligate the fallopian tubes. It is a mainstay of female sterilization in resource-limited settings. * **Uterine Elevation (Option C):** This is a specific surgical step/technique used *during* a mini-laparotomy. A uterine elevator is inserted vaginally to push the fundus toward the small abdominal incision, making the fallopian tubes accessible for ligation. **Clinical Pearls for NEET-PG:** * **Ideal Time:** Mini-laparotomy for sterilization is best performed in the **immediate postpartum period** (within 48 hours) when the fundus is high, or as a "concurrent" procedure with MTP. * **Pomeroy’s Method:** The most common technique used during mini-laparotomy tubectomy. * **Contraindications to Mini-lap:** Morbid obesity, previous pelvic surgery (due to adhesions), and acute pelvic inflammatory disease (PID).

Q: A 14-week pregnant woman presents with abdominal pain. Ultrasound reveals the fetus is located in a rudimentary uterine horn. What is the most appropriate management in this situation?

Surgical removal of the pregnant rudimentary uterine horn. **Explanation:** A **rudimentary horn pregnancy** is a rare but life-threatening form of ectopic pregnancy occurring in a non-communicating horn of a unicornuate uterus (Müllerian anomaly Class II). **1. Why the correct answer is right:** The myometrium of a rudimentary horn is typically underdeveloped and cannot accommodate a growing fetus. This leads to a high risk of **spontaneous rupture**, usually in the second trimester (10–20 weeks), resulting in massive hemoperitoneum. Once diagnosed, the standard of care is **surgical removal of the pregnant rudimentary horn (excision)** to prevent rupture and maternal mortality. The ipsilateral fallopian tube is also typically removed to prevent a future ectopic pregnancy in that remnant. **2. Why incorrect options are wrong:** * **Hysterectomy (A):** This is overly radical for a 14-week pregnancy in a young patient. The main unicornuate uterus is functional and should be preserved to allow for future pregnancies. * **Induction of labor (C):** Most rudimentary horns do not communicate with the cervix. Therefore, prostaglandins will cause uterine contractions against an obstructed outlet, inevitably leading to rupture rather than delivery. * **Conservative management (D):** This is contraindicated due to the near-certainty of rupture and life-threatening hemorrhage as the pregnancy advances. **Clinical Pearls for NEET-PG:** * **Classic Presentation:** Severe abdominal pain and collapse in the second trimester (unlike tubal ectopics which rupture in the first trimester). * **Baartman’s Sign:** A clinical finding where the pregnant horn is palpated as a mass separated from the uterus by a groove. * **Ultrasound Finding:** A "pseudo-asymmetrical" uterus with a gestational sac surrounded by myometrium, separate from the main uterine body. * **Risk:** 80-90% of these pregnancies end in rupture.

Q: What is the effective pressure that should be achieved in vacuum extraction?

0.6 kg/cm2. **Explanation:** In vacuum extraction (Ventouse), the goal is to create a sufficient vacuum between the fetal scalp and the cup to allow for traction without causing unnecessary trauma. 1. **Why 0.6 kg/cm² is correct:** To achieve an effective "chignon" (artificial caput succedaneum) and ensure the cup does not slip during traction, a negative pressure of **0.6 to 0.8 kg/cm²** is required. This is considered the standard therapeutic pressure. In SI units, this corresponds to approximately **600 mmHg** or **-0.8 kg/cm²** (depending on the specific device guidelines, but 0.6 is the classic exam answer). 2. **Why the other options are incorrect:** * **0.1 kg/cm² (Options A & B):** This is the initial pressure used to "fix" the cup to the scalp. It is insufficient for traction and is only meant to hold the cup in place while checking for any trapped maternal soft tissue (vaginal or cervical) before increasing to full pressure. * **1.2 kg/cm² (Option D):** This pressure is excessively high. Pressures exceeding 0.8 kg/cm² significantly increase the risk of fetal scalp trauma, including subgaleal hemorrhage, cephalhematoma, and intracranial bleeding. **Clinical Pearls for NEET-PG:** * **The "Rule of 3s":** Vacuum extraction should be abandoned if there are **3 pulls** with no descent, **3 pop-offs** (cup detachments), or if the procedure exceeds **20-30 minutes**. * **Placement:** The cup should be centered over the **flexion point** (6 cm posterior to the anterior fontanelle, on the sagittal suture) to promote flexion and minimize the diameter of the presenting part. * **Contraindications:** Prematurity (<34 weeks), face presentation, and fetal bleeding diathesis. * **Traction:** Should be applied only during uterine contractions and maternal pushing efforts.

Q: What is true about instrumental vaginal delivery?

Forceps are used in all cases of breech delivery.. **Explanation:** **1. Why Option B is Correct:** In breech presentations, the **Piper’s Forceps** is specifically designed to deliver the after-coming head of the fetus. Unlike cephalic presentations where forceps are an alternative to ventouse, in breech delivery, **ventouse is strictly contraindicated** because it cannot be applied to the face or the after-coming head. Therefore, forceps are the instrumental choice for the controlled delivery of the head to prevent sudden decompression and intracranial hemorrhage. **2. Analysis of Incorrect Options:** * **Option A:** Full cervical dilatation is a mandatory prerequisite, but it is **not the only one**. Other criteria include ruptured membranes, empty bladder, engaged head (at least +2 station), known fetal position, and adequate maternal pelvis/analgesia. * **Option C:** If ventouse fails, the standard recommendation is to proceed to a **Cesarean Section**. Sequential use of instruments (forceps after failed ventouse) is generally discouraged due to a significantly higher risk of severe fetal trauma and maternal perineal injury. * **Option D:** Ventouse **can** be used for rotational deliveries. While Bird’s modification of the Malmstrom cup is often used, the ventouse facilitates rotation by promoting flexion and allowing the head to rotate on the pelvic floor. **Clinical Pearls for NEET-PG:** * **Prerequisites Mnemonic (FORCEPS):** **F**etus alive, **O**s fully dilated, **R**uptured membranes, **C**ephalic/Contracted pelvis absent, **E**ngaged head, **P**osition known, **S**tation +2 or lower. * **Contraindication for Ventouse:** Prematurity (<34 weeks), face/breech presentation, and fetal coagulopathies. * **Preferred Instrument:** Ventouse is associated with less maternal trauma; Forceps are associated with a higher success rate but more 3rd/4th-degree perineal tears.

Q: In an unruptured ectopic pregnancy patient who underwent a salpingostomy procedure, what is the typical management of the tubal incision?

The tubal incision is left open for secondary healing.. ### Explanation In the surgical management of an unruptured ectopic pregnancy, **Salpingostomy** is the preferred fertility-preserving procedure. **1. Why Option A is Correct:** During a linear salpingostomy, a longitudinal incision is made on the antimesenteric border of the fallopian tube over the site of the ectopic gestation. After the products of conception are removed and hemostasis is achieved, the **incision is left open to heal by secondary intention**. Studies have shown that suturing the thin, delicate tubal wall (primary closure) does not improve future pregnancy rates and may actually increase the risk of tubal scarring, narrowing, and subsequent recurrent ectopic pregnancy. **2. Why Other Options are Incorrect:** * **Option B:** Closing the incision with sutures (Salpingotomy) is generally avoided as it increases operative time and the risk of tubal lumen stenosis without providing any clinical benefit over salpingostomy. * **Option C:** "Milking" or tubal expression involves pushing the pregnancy out through the fimbrial end. This is associated with a higher risk of persistent trophoblastic tissue and a higher recurrence rate compared to salpingostomy. * **Option D:** Partial excision (Salpingectomy) is the treatment of choice for a **ruptured** ectopic pregnancy or when the tube is severely damaged, but it is not the standard for a simple salpingostomy. ### High-Yield Clinical Pearls for NEET-PG: * **Gold Standard for Diagnosis:** Transvaginal Ultrasound (TVS) + Serum β-hCG. * **Surgical Approach:** Laparoscopy is the gold standard for hemodynamically stable patients. * **Persistent Trophoblast:** The most common complication of salpingostomy. Post-operative weekly β-hCG monitoring is mandatory until levels are <5 mIU/mL. * **Rh-Negative Mothers:** Always administer Anti-D immunoglobulin post-procedure to prevent isoimmunization.

Question 1

A patient presents at 8 weeks of pregnancy with complaints of excessive vomiting, nausea, inability to tolerate oral intake, and decreased frequency of urination. What is the most appropriate management?

Accepted Answer

Admit, administer IV fluids, IV antiemetics, and monitor input/output

Answer

Pyridoxine plus doxylamine with plenty of oral fluids

Answer

Administer intravenous hydrocortisone

Answer

Administer intravenous promethazine

Question 2

All of the following are indications of classical cesarean section except:

Accepted Answer

Cancer of the endometrium

Answer

Small breech baby

Answer

Large baby with transverse lie

Answer

Leiomyoma in lower pole of uterus

Question 3

Which of the following is NOT a criterion for the diagnosis of HELLP syndrome?

Accepted Answer

Convulsions

Answer

Hemolysis

Answer

SGOT > 72 IU/L

Answer

Platelets < 100,000/mm3

Question 4

Which of the following is NOT an indication for a classical cesarean section?

Accepted Answer

Breech presentation

Answer

Densely adhered bladder

Answer

Leiomyoma in the lower uterine segment

Answer

Back-down transverse fetal lie

Question 5

Which drug is used for mid-trimester abortion?

Accepted Answer

Mifepristone

Answer

Atosiban

Answer

Valethamate

Answer

Methotrexate

Question 6

Mini laparotomy is indicated in all the following conditions except?

Accepted Answer

Ectopic pregnancy

Answer

Internal sterilization

Answer

Uterine elevation

Answer

Tubectomy

Question 7

A 14-week pregnant woman presents with abdominal pain. Ultrasound reveals the fetus is located in a rudimentary uterine horn. What is the most appropriate management in this situation?

Accepted Answer

Surgical removal of the pregnant rudimentary uterine horn

Answer

Hysterectomy

Answer

Induction of labor using prostaglandins

Answer

Conservative management with no active treatment

Question 8

What is the effective pressure that should be achieved in vacuum extraction?

Accepted Answer

0.6 kg/cm2

Answer

0.1 kg/cm2

Answer

0.1 kg/cm2

Answer

1.2 kg/cm2

Question 9

What is true about instrumental vaginal delivery?

Accepted Answer

Forceps are used in all cases of breech delivery.

Answer

Full cervical dilatation is the only prerequisite.

Answer

Forceps may be used if ventouse fails.

Answer

Ventouse cannot be used in rotational occipito-transverse/posterior delivery.

Question 10

In an unruptured ectopic pregnancy patient who underwent a salpingostomy procedure, what is the typical management of the tubal incision?

Accepted Answer

The tubal incision is left open for secondary healing.

Answer

The tubal incision is closed with sutures.

Answer

Milking of the tube is performed.

Answer

Partial excision of the tube is done.

Operative Obstetrics — MCQs

Operative Obstetrics — MCQs

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