NEET-PG 2024 — Obstetrics and Gynecology
14 Previous Year Questions with Answers & Explanations
The flexion point in ventouse (vacuum) delivery is located at:
Identify the instrument shown in the image below:
Which of the following is not a contraindication for External Cephalic Version (ECV)?
A 30-year-old female, G2L2, with a history of cervical elongation presents for surgical consultation. What is the surgery of choice?
A pregnant woman presents with an IUD in place, and the thread is clearly visible. She wishes to continue the pregnancy. What is the most appropriate next step?
A woman at 30 weeks of gestation is diagnosed with deep vein thrombosis (DVT). Which of the following is the most appropriate treatment for this patient?
A patient with eclampsia is being treated with magnesium sulfate. Which of the following is an indication to stop the drug?
A pregnant female at 37 weeks of gestation with a history of prosthetic heart valves is currently taking warfarin. She comes for a routine antenatal check-up. What is the appropriate management advice?
A 14-year-old victim of sexual assault with 22 weeks gestation has been brought for Medical Termination of Pregnancy (MTP). Which of the following statements is true?
A pregnant lady delivers a healthy baby via normal delivery. What is the earliest time at which an intrauterine contraceptive device (IUCD) can be inserted?
NEET-PG 2024 - Obstetrics and Gynecology NEET-PG Practice Questions and MCQs
Question 1: The flexion point in ventouse (vacuum) delivery is located at:
- A. 3 cm posterior to the anterior fontanelle
- B. 3 cm anterior to the posterior fontanelle (Correct Answer)
- C. 6 cm anterior to the posterior fontanelle
- D. Midway between the anterior and posterior fontanelle
Explanation: ***3 cm anterior to the posterior fontanelle*** - This is the **correct location of the flexion point** (also described as approximately 6 cm posterior to the anterior fontanelle along the sagittal suture). - This position optimizes the **flexion-traction axis** during vacuum extraction, ensuring that the fetal head descends through the birth canal in the most favorable attitude with maximum flexion. - Correct placement of the vacuum cup at this site provides a **mechanical advantage**, leveraging the natural pivot point of the fetal head for effective delivery and bringing the **occiput** down first. *3 cm posterior to the anterior fontanelle* - This location is **too far anterior**, only 3 cm from the anterior fontanelle, and does not correspond to the true flexion point. - Placing the cup here would result in **suboptimal flexion** and poor mechanical advantage during traction. - This may lead to **cup slippage**, increased rate of failed vacuum delivery, and potential scalp injury. *6 cm anterior to the posterior fontanelle* - Since the distance between fontanelles is approximately 9 cm, this position would be equivalent to 3 cm posterior to the anterior fontanelle (too anterior). - This is **not the correct flexion point** and would result in the same problems as placing the cup too far anterior. *Midway between the anterior and posterior fontanelle* - While this location (approximately 4.5 cm from either fontanelle) might seem intuitive, it does not precisely correspond to the optimal **flexion point** for vacuum extraction. - The true flexion point is slightly more posterior, at **3 cm anterior to the posterior fontanelle**, which optimizes the mechanism of labor.
Question 2: Identify the instrument shown in the image below:
- A. Simpson
- B. Wrigley
- C. Pipers
- D. Kielland (Correct Answer)
Explanation: ***Kielland*** - Kielland forceps are distinguished by their **lack of pelvic curve** and the presence of a sliding lock mechanism designed for **rotation of the fetal head**. - They are primarily used for **rotational delivery** when the fetal head is in malposition, often in the mid-pelvis. *Simpson* - Simpson forceps have a distinct **cephalic curve** for grasping the fetal head and a **pelvic curve** to conform to the birth canal. - They are commonly used for **outlet and low-cavity deliveries** where minimal rotation is needed. *Wrigley* - Wrigley forceps are a type of **outlet forceps** with a very short shanks and blades, making them suitable only when the fetal head is on the **perineum**. - They are designed for situations where the head is already visible without separating the labia. *Pipers* - Pipers forceps are specifically designed for **delivery of the after-coming head in breech presentations**. - They feature a long, curved shank that allows placement from below the maternal pelvis to grasp the fetal head in this particular presentation.
Question 3: Which of the following is not a contraindication for External Cephalic Version (ECV)?
- A. Placenta previa
- B. Twin pregnancy
- C. PROM (Premature Rupture of Membranes)
- D. Primigravida (Correct Answer)
Explanation: ***Primigravida*** - Being a **primigravida** (first pregnancy) is not a contraindication for ECV, though it might be associated with a slightly lower success rate compared to multiparous women due to a less pliable uterus. - While it may indicate a potentially more challenging ECV due to higher uterine tone, it does not preclude the procedure if other conditions are favorable. *Placenta previa* - **Placenta previa** is a contraindication because the manipulation of the uterus during ECV could dislodge the placenta, leading to **severe hemorrhage** and potential fetal compromise. - This condition involves the placenta covering the cervical opening, making any uterine intervention risky. *Twin pregnancy* - **Twin pregnancy** is a contraindication as ECV is generally not recommended in multiple gestations due to increased complexity and risk of complications. - The risk of **umbilical cord entanglement**, disruption of twin positioning, and potential harm to either fetus makes ECV unsafe in twin pregnancies. *PROM (Premature Rupture of Membranes)* - **Premature Rupture of Membranes (PROM)** is a contraindication due to the increased risk of uterine infection and **cord prolapse** during manipulation. - Once membranes are ruptured, the natural cushioning provided by the amniotic fluid is lost, making ECV potentially traumatic for both the mother and the fetus.
Question 4: A 30-year-old female, G2L2, with a history of cervical elongation presents for surgical consultation. What is the surgery of choice?
- A. Fothergill (Correct Answer)
- B. McCall
- C. Lefort
- D. Hysterectomy
Explanation: **Fothergill** - The Fothergill operation, or **Manchester procedure**, is a surgical technique used for **cervical elongation** and **genital prolapse**, specifically involving suspension of the cardinal ligaments and cervical amputation. - This procedure addresses both the elongated cervix and associated pelvic organ prolapse without removing the uterus, making it suitable for women who wish to retain their uterus. *McCall* - The McCall culdoplasty is primarily performed to correct **vaginal vault prolapse** and is typically done during a hysterectomy or for post-hysterectomy prolapse. - It involves plicating the uterosacral ligaments to provide support to the vaginal vault; it does not directly address cervical elongation. *Lefort* - The Lefort colpocleisis is a **partial vaginal closure** procedure performed for severe pelvic organ prolapse in elderly women who are no longer sexually active. - This operation reduces symptoms of prolapse but closes off a significant portion of the vagina, making it unsuitable for sexually active patients or those desiring uterine preservation for fertility. *Hysterectomy* - A hysterectomy involves the **surgical removal of the uterus**, which would address cervical elongation by default as the cervix is part of the uterus. - However, for a 30-year-old female who may wish to retain reproductive function or avoid an extensive surgery if other options are available, hysterectomy is usually not the first-line choice for isolated cervical elongation.
Question 5: A pregnant woman presents with an IUD in place, and the thread is clearly visible. She wishes to continue the pregnancy. What is the most appropriate next step?
- A. Leave the IUD inside
- B. Remove gently (Correct Answer)
- C. MTP (Medical Termination of Pregnancy)
- D. Cesarean section
Explanation: ***Remove gently*** - When the **IUD thread is visible**, gentle removal is recommended if the woman wishes to **continue the pregnancy**, as this significantly reduces the risk of miscarriage and infection. - Leaving an **IUD in situ** during pregnancy increases risks of **septic miscarriage**, **preterm delivery**, and **chorioamnionitis**. *Leave the IUD inside* - Leaving an **IUD in place** during pregnancy increases the risks of **septic miscarriage**, **chorioamnionitis**, and **preterm labor**. - The presence of the IUD can also lead to **placental complications** and difficulties with fetal development. *MTP (Medical Termination of Pregnancy)* - MTP is an option for unintended pregnancies but is not the most appropriate first step when the patient explicitly **wishes to continue the pregnancy**. - MTP would be considered if the patient chose to terminate, but the question states she wants to continue. *Cesarean section* - **Cesarean section** is a mode of delivery and is not an appropriate initial intervention for an early pregnancy with an **IUD in situ**. - The removal of an IUD from an early pregnancy does not necessitate a cesarean section.
Question 6: A woman at 30 weeks of gestation is diagnosed with deep vein thrombosis (DVT). Which of the following is the most appropriate treatment for this patient?
- A. Warfarin
- B. Low Molecular Weight Heparin (LMWH) (Correct Answer)
- C. Apixaban
- D. Fondaparinux
Explanation: ***Low Molecular Weight Heparin (LMWH)*** - **LMWH** is the preferred anticoagulant for DVT during pregnancy because it does **not cross the placenta**, making it safe for the fetus. - It also has a **predictable anticoagulant response** and a lower risk of **heparin-induced thrombocytopenia (HIT)** compared to unfractionated heparin. *Warfarin* - **Warfarin is teratogenic**, especially during the first trimester, and can cause **fetal warfarin syndrome**, which includes skeletal and central nervous system abnormalities. - It can also lead to **fetal bleeding** and miscarriage at any stage of pregnancy. *Apixaban* - **Apixaban** is a **direct oral anticoagulant (DOAC)**, and its safety in pregnancy has not been established. - There is insufficient data regarding its **placental transfer** and potential fetal effects, making its use generally contraindicated in pregnant women. *Fondaparinux* - While **fondaparinux** is an indirect Factor Xa inhibitor and might be considered in cases of heparin allergy or intolerance, its **safety profile in pregnancy is not as well-established** as LMWH. - It is generally reserved for situations where LMWH cannot be used, and its use requires careful consideration due to limited data.
Question 7: A patient with eclampsia is being treated with magnesium sulfate. Which of the following is an indication to stop the drug?
- A. Respiratory rate more than 18 per minute
- B. Exaggerated deep tendon reflexes
- C. Urine output less than 100 ml in 4 hours (Correct Answer)
- D. Presence of visual disturbances
Explanation: ***Urine output less than 100 ml in 4 hours*** - A **decreased urine output of less than 100 mL in 4 hours (< 25-30 mL/hour)** suggests **renal impairment**, which can lead to magnesium accumulation and toxicity. - **Magnesium is primarily excreted by the kidneys**, so reduced renal function necessitates discontinuation to prevent toxicity. - This is one of the **critical monitoring parameters** before each dose of magnesium sulfate. *Respiratory rate more than 18 per minute* - A **respiratory rate of 18 breaths per minute or more** is considered normal and does not indicate magnesium toxicity. - **Respiratory depression**, characterized by a rate of **less than 12 breaths per minute**, is a sign of toxicity and an indication to stop magnesium sulfate. *Exaggerated deep tendon reflexes* - **Exaggerated deep tendon reflexes** are typically associated with conditions like **pre-eclampsia**, not magnesium toxicity. - **Loss or absence of deep tendon reflexes** is a key indicator of magnesium toxicity due to its neuromuscular blocking effects and is an indication to stop the drug. *Presence of visual disturbances* - **Visual disturbances** such as blurred vision, scotomas, or flashing lights are common symptoms of **severe pre-eclampsia and eclampsia** itself. - These visual changes are part of the disease process, not a direct sign of magnesium toxicity or an indication to stop the infusion.
Question 8: A pregnant female at 37 weeks of gestation with a history of prosthetic heart valves is currently taking warfarin. She comes for a routine antenatal check-up. What is the appropriate management advice?
- A. Immediate induction of labor
- B. Perform LSCS (Lower Segment Cesarean Section)
- C. Continue the same medication
- D. Switch to low molecular weight heparin (Correct Answer)
Explanation: ***Switch to low molecular weight heparin*** - **Warfarin** is **teratogenic** and carries a significant risk of **fetal bleeding** and **malformations**, especially close to term. Switching to **low molecular weight heparin (LMWH)** is crucial at 37 weeks. - **LMWH** does not cross the placenta, making it a safer alternative for anticoagulation in late pregnancy for women with prosthetic heart valves. *Immediate induction of labor* - While delivery is approaching, immediate induction of labor without addressing the **warfarin** use directly puts the fetus at high risk of **bleeding complications** during delivery. - This option does not specify concurrent management of the anticoagulation, which is the primary concern. *Perform LSCS (Lower Segment Cesarean Section)* - Similar to induction of labor, performing a C-section while the mother is on **warfarin** significantly increases the risk of **maternal and fetal hemorrhage**. - A C-section is an invasive procedure, and the immediate priority is to switch the anticoagulant rather than select the mode of delivery without addressing the current medication. *Continue the same medication* - Continuing **warfarin** at 37 weeks is highly dangerous due to the increased risk of **fetal intracranial hemorrhage** during labor and delivery. - This approach disregards the well-established **teratogenic effects** and **bleeding risks** associated with warfarin in late pregnancy.
Question 9: A 14-year-old victim of sexual assault with 22 weeks gestation has been brought for Medical Termination of Pregnancy (MTP). Which of the following statements is true?
- A. One doctor is involved
- B. MTP done in 2nd trimester only when mother's life is in danger
- C. MTP can be carried out up to 24 weeks (Correct Answer)
- D. MTP cannot be more than 20 weeks
Explanation: ***MTP can be carried out up to 24 weeks*** - The **Medical Termination of Pregnancy (Amendment) Act, 2021**, allows termination of pregnancy up to **24 weeks** for certain vulnerable groups, including survivors of sexual assault and minors. - As a 14-year-old victim of sexual assault, she falls under the category which permits MTP up to 24 weeks. *One doctor is involved* - For pregnancies between 12 and 20 weeks, the opinion of **two registered medical practitioners** is required for MTP. - Beyond 20 weeks up to 24 weeks, as in this case, the opinion of **two registered medical practitioners** is also mandatory. *MTP done in 2nd trimester only when mother's life is in danger* - While danger to the mother's life is a valid reason for MTP, the **MTP Act 2021** has expanded the grounds for MTP in the second trimester (beyond 12 weeks) to include other categories like **sexual assault survivors** and **minors**, even if the mother's life is not immediately in danger. - The primary consideration here is the **vulnerability** of the pregnant person, not solely imminent danger to life. *MTP cannot be more than 20 weeks* - This statement is incorrect as per the **Medical Termination of Pregnancy (Amendment) Act, 2021**. - The Act raised the upper gestation limit from 20 to **24 weeks** for specific categories of women, including victims of sexual assault and minors, aligning with the current case.
Question 10: A pregnant lady delivers a healthy baby via normal delivery. What is the earliest time at which an intrauterine contraceptive device (IUCD) can be inserted?
- A. Within 48 hours (Correct Answer)
- B. After 6 weeks
- C. After 3 months
- D. After 1 month
Explanation: ***Within 48 hours*** - **Immediate postpartum insertion** (within 48 hours of delivery) is considered safe and effective, with high client satisfaction and continuation rates. - While there's a slightly higher risk of **expulsion** compared to later insertions, it provides immediate contraception for women who might not return for follow-up. *After 6 weeks* - This is a common time for postpartum check-ups and a traditional window for IUCD insertion, after the uterus has largely involuted. - However, it is not the **earliest possible time**, as immediate postpartum insertion is also an option. *After 3 months* - Delaying IUCD insertion until three months postpartum is unnecessarily late if the woman desires contraception sooner. - This longer delay could increase the risk of an **unintended pregnancy** during the interim. *After 1 month* - Insertion at one month postpartum is also a safe option, after early uterine involution. - However, similar to the six-week option, it is not the **earliest possible time** for insertion.