NEET-PG 2015 - Obstetrics and Gynecology Practice Questions

Q: What is the FDA-recommended time interval between Mifepristone and Misoprostol administration in medical termination of pregnancy?

24-48 hours. ***24-48 hours*** - The FDA-approved protocol for medical abortion with mifepristone and misoprostol specifies a **24- to 48-hour interval** between the administration of the two drugs. - This timing ensures optimal efficacy as it allows mifepristone to adequately sensitize the uterus to the effects of misoprostol. *48 hours* - While 48 hours falls within the recommended range, specifically stating "48 hours" as the only option is less precise than the **24-48 hour window**. - No specific clinical advantage or disadvantage is generally reported for waiting exactly 48 hours over, for instance, 24 hours. *96 hours* - A 96-hour interval is significantly longer than the **FDA-recommended window** and is not part of the standard, evidence-based protocol. - Delaying misoprostol administration beyond 48 hours may **reduce the effectiveness** of the medical abortion and increase the risk of complications. *72 hours* - A 72-hour interval exceeds the upper limit of the **FDA-recommended window** for optimal efficacy. - While some studies have explored extended intervals, the *standard clinical practice* and FDA guidelines do not endorse 72 hours as the primary recommended interval.

Q: Which of the following drugs is commonly used in the treatment of endometriosis?

Combined oral contraceptives. ***Combined oral contraceptives*** - **Combined oral contraceptives (COCs)** are the **most commonly used first-line medical treatment** for endometriosis, as they suppress ovulation and reduce estrogen production, thereby reducing endometrial lesion growth. - They help manage **endometriosis-associated pain** by decreasing menstrual flow and uterine contractions. - COCs are widely prescribed due to their efficacy, safety profile, and additional contraceptive benefits. *Letrozole* - **Letrozole** is an aromatase inhibitor that reduces local estrogen production and has shown efficacy in treating endometriosis, particularly in refractory cases. - However, it is **not commonly used as first-line therapy** due to potential side effects (bone density concerns, teratogenicity) and is typically reserved for cases resistant to conventional hormonal therapy. - It may be used in combination with progestins for better outcomes. *Mifepristone* - **Mifepristone** is an antiprogestin primarily used for medical abortion or in the treatment of Cushing's syndrome. - It works by blocking **progesterone receptors** and is not a standard treatment for endometriosis. *None of the above* - This option is incorrect because **combined oral contraceptives** are the most widely accepted and commonly used treatment for endometriosis.

Q: Which of the following methods is not used for managing shoulder dystocia?

Hegar's maneuver. *McRobert's maneuver* - This maneuver is a common first-line intervention for shoulder dystocia, involving sharp **flexion of the mother's hips** back towards her abdomen to flatten the sacrum and rotate the symphysis pubis anteriorly. - It works by increasing the functional diameter of the **pelvic outlet**, potentially dislodging the anterior shoulder. ***Hegar's maneuver*** - **Hegar's sign** is a clinical finding related to early pregnancy, indicating the **softening of the lower uterine segment** (isthmus) upon bimanual examination. - It is a diagnostic sign of pregnancy and **not a method used to resolve shoulder dystocia**. *Zavanelli maneuver* - The **Zavanelli maneuver** is a last-resort intervention for shoulder dystocia, involving the **replacement of the fetal head into the uterus** followed by immediate delivery via **cesarean section**. - This is a highly invasive procedure with significant risks to both mother and fetus, used when other maneuvers have failed. *Wood's maneuver* - **Wood's maneuver** involves **rotating the fetal shoulders** by applying pressure to the posterior aspect of the anterior shoulder or the anterior aspect of the posterior shoulder to achieve a corkscrew effect. - This rotation can help dislodge an impacted shoulder or facilitate its passage under the symphysis pubis.

Q: What is the recommended management for a patient with complete placenta previa at 38 weeks gestation without any vaginal bleeding?

Elective caesarean section. ***Elective caesarean section*** - For women with **complete placenta previa** at term (38 weeks), an **elective caesarean section** is the recommended mode of delivery to avoid significant hemorrhage. - Even in the absence of bleeding, the risk of massive hemorrhage during labor with a complete previa is high, necessitating planned surgical delivery. *Observation and monitoring until delivery* - This approach is not safe for complete placenta previa at term due to the high risk of **unpredictable, severe hemorrhage** once labor begins or the cervix dilates. - Active monitoring without planned intervention carries significant maternal and fetal risk. *Conservative management with bed rest* - While bed rest may be used in cases of **placenta previa with bleeding** earlier in gestation to prolong pregnancy, it does not address the fundamental risk of hemorrhage from a complete previa at 38 weeks. - It would not prevent the need for an eventual caesarean section and prolongs potential risks. *Urgent caesarean section due to bleeding risk* - While there is a bleeding risk, this scenario describes a patient at 38 weeks gestation **without any vaginal bleeding**, making it an elective, rather than urgent, situation. - An **urgent caesarean section** is typically reserved for cases where active bleeding or other obstetric emergencies are present.

Q: Which of the following ovarian tumors is most prone to undergo torsion during pregnancy?

Dermoid cyst. ***Dermoid cyst*** - **Dermoid cysts**, or mature cystic teratomas, are the **most common ovarian tumors** to undergo torsion, especially during pregnancy due to their mobility and moderate size. - They are often **unilateral** and benign, containing various mature tissues such as hair, teeth, and sebaceous material. *Serous cystadenoma* - While common, **serous cystadenomas** are generally **less mobile** than dermoid cysts and thus have a lower propensity for torsion. - They are typically filled with **clear, watery fluid** and can grow to be quite large. *Mucinous cystadenoma* - **Mucinous cystadenomas** tend to be **larger** than dermoid cysts and are less prone to torsion due to their size and often fixed position within the pelvis. - They are filled with **thick, gelatinous mucin** and can reach massive sizes, sometimes filling the entire abdominal cavity. *Theca lutein cyst* - **Theca lutein cysts** are usually **bilateral** and occur with conditions like **gestational trophoblastic disease** or **ovarian hyperstimulation**. - While they can be large, their often bilateral nature and underlying pathological conditions make them **less likely to independently twist** as a primary event compared to a freely mobile dermoid cyst.

Q: Lovset manoeuvre is used in delivery of:

Arms. ***Arms*** - The Lovset manoeuvre is specifically designed to facilitate the delivery of the **shoulders and arms** in a **breech presentation** when they are extended upwards. - This technique involves rotating the fetal trunk to bring the anterior shoulder under the pubic symphysis, allowing for the gentle extraction of the posterior arm first, followed by the anterior arm. *Head* - Delivery of the head in a breech presentation is typically managed using **Mauriceau-Smellie-Veit manoeuvre** or Piper forceps, not the Lovset manoeuvre. - The Lovset manoeuvre aims to address difficult arm delivery prior to head delivery. *Breech* - While the Lovset manoeuvre is used *during* a breech delivery, it specifically addresses **arm extraction**, not the overall delivery of the entire breech presentation. - The term "breech" refers to the fetal presentation where the buttocks or feet are presented first. *Foot* - If a foot is presenting first, it is usually a **footling breech presentation**, and the delivery of the foot itself does not typically require the Lovset manoeuvre. - The Lovset manoeuvre is reserved for extended arms, which are distinct from the initial presentation of a foot.

Q: Most common complication of dermoid cyst is -

Torsion. ***Torsion*** - Ovarian dermoid cysts (mature cystic teratomas) are prone to **torsion** due to their common unilateral, round, and easily mobile nature. - Torsion results from the **twisting of the ovarian pedicle**, which can lead to exquisite pain and potential **ischemic necrosis** of the ovary. - **Most common complication** occurring in **15-20% of dermoid cysts**. *Cyst Rupture* - While rupture can occur, it is a **less common complication** than torsion, occurring in **1-4% of cases**. - Rupture can release sebaceous material and hair into the peritoneal cavity, leading to **chemical peritonitis**. *Malignant degeneration* - **Malignant transformation** within a dermoid cyst is rare, occurring in **less than 1-2% of cases**, making it much less common than torsion. - The most common type of malignancy arising from a dermoid cyst is **squamous cell carcinoma**. *Infection* - **Secondary infection** of dermoid cysts is a rare complication. - Much less common than torsion, and typically presents with fever, pain, and signs of inflammation.

Q: Which is false about stress urinary incontinence?

More common in men. ***More common in men*** - **Stress urinary incontinence (SUI)** is significantly more prevalent in **women** due to anatomical differences and factors like childbirth. - While it can occur in men, especially after prostate surgery, the overall incidence is higher in females. *It is due to weakening of pelvic floor muscles* - Weakening of the **pelvic floor muscles** is a primary cause of SUI, leading to insufficient support for the urethra and bladder neck. - This weakness compromises the ability to maintain urethral closure pressure during activity. *Prostate surgery may be a cause* - **Radical prostatectomy** for prostate cancer is a common cause of SUI in men, as it can damage the urethral sphincter. - Damage to the internal or external urethral sphincter during surgery impairs the ability to control urine flow. *It occurs during increased abdominal pressure* - SUI characteristically involves involuntary urine leakage during activities that increase **intra-abdominal pressure**, such as coughing, sneezing, laughing, or exercising. - This increased pressure overcomes the weakened urethral resistance, leading to urine loss.

Q: What does the term 'crowning' refer to in the context of childbirth?

Biparietal diameter at the vulval outlet. ***Biparietal diameter at the vulval outlet*** - **Crowning** specifically refers to the moment when the largest diameter of the baby's head (the **biparietal diameter**) has passed through the pelvic outlet and becomes visible at the vaginal opening without receding between contractions. - This signifies that the head is fully engaged and will no longer slip back, making birth imminent. *Biparietal diameter at the inlet of pelvis* - The **biparietal diameter** at the inlet of the pelvis describes the initial engagement of the fetal head into the pelvis, which is a much earlier stage than crowning. - This stage is referred to as **engagement**, not crowning, and there is no visible head at this point. *Biparietal diameter at the ischial spine* - The **ischial spines** are a landmark often used to assess the fetal head's station in the pelvis (how far down it has descended). - While important for assessing progress, the biparietal diameter reaching the ischial spines indicates a **station 0**, which is still internal and not visible at the vulva, thus not crowning. *Biparietal diameter just outside the vulval outlet* - If the **biparietal diameter** is **just outside** the vulval outlet, it implies the head has already been born or is so far progressed that crowning has already occurred or the head is delivering. - Crowning specifically describes the moment it becomes visible and sustained at the outlet, not outside it.

Question 1

What is the FDA-recommended time interval between Mifepristone and Misoprostol administration in medical termination of pregnancy?

Accepted Answer

24-48 hours

Answer

96 hours

Answer

48 hours

Answer

72 hours

Question 2

Which of the following drugs is commonly used in the treatment of endometriosis?

Accepted Answer

Combined oral contraceptives

Answer

None of the above

Answer

Letrozole

Answer

Mifepristone

Question 3

Which of the following statements about nabothian cysts is true?

Accepted Answer

Squamous epithelium grows over columnar epithelium, blocking mucus-secreting glands.

Answer

It is a premalignant condition that requires excision.

Answer

It is a malignant condition.

Answer

It may be associated with chronic irritation and inflammation but is not defined by it.

Question 4

Which of the following methods is not used for managing shoulder dystocia?

Accepted Answer

Hegar's maneuver

Answer

Zavanelli maneuver

Answer

Wood's maneuver

Answer

McRobert's maneuver

Question 5

What is the recommended management for a patient with complete placenta previa at 38 weeks gestation without any vaginal bleeding?

Accepted Answer

Elective caesarean section

Answer

Observation and monitoring until delivery

Answer

Conservative management with bed rest

Answer

Urgent caesarean section due to bleeding risk

Question 6

Which of the following ovarian tumors is most prone to undergo torsion during pregnancy?

Accepted Answer

Dermoid cyst

Answer

Serous cystadenoma

Answer

Mucinous cystadenoma

Answer

Theca lutein cyst

Question 7

Lovset manoeuvre is used in delivery of:

Accepted Answer

Arms

Answer

Head

Answer

Breech

Answer

Foot

Question 8

Most common complication of dermoid cyst is -

Accepted Answer

Torsion

Answer

Cyst Rupture

Answer

Malignant degeneration

Answer

Infection

Question 9

Which is false about stress urinary incontinence?

Accepted Answer

More common in men

Answer

It is due to weakening of pelvic floor muscles

Answer

Prostate surgery may be a cause

Answer

It occurs during increased abdominal pressure

Question 10

What does the term 'crowning' refer to in the context of childbirth?

Accepted Answer

Biparietal diameter at the vulval outlet

Answer

Biparietal diameter at the inlet of pelvis

Answer

Biparietal diameter at the ischial spine

Answer

Biparietal diameter just outside the vulval outlet

NEET-PG 2015 — Obstetrics and Gynecology