NEET-PG 2013 - Obstetrics and Gynecology Practice Questions

Q: In which condition is a frozen pelvis commonly observed?

Severe endometriosis. ***Severe endometriosis*** - A **frozen pelvis** is a classic finding in severe endometriosis, characterized by extensive adhesions and fibrosis that fix pelvic organs together, making them immobile. - This condition involves the presence of **endometrial-like tissue** outside the uterus, leading to chronic inflammation, scarring, and adherence of structures like the uterus, ovaries, and bowel. *Advanced cervical carcinoma* - While advanced cervical carcinoma can cause widespread pelvic involvement and **fixation of organs**, the term "frozen pelvis" is not as commonly or specifically associated with it as it is with severe endometriosis. - The dominant findings would typically relate to the **tumor mass**, local invasion, and potential involvement of lymph nodes or distant metastasis. *Post-radiation pelvic fibrosis* - **Radiation therapy** can certainly lead to significant pelvic fibrosis and adhesions, restricting organ mobility. - However, this is largely an iatrogenic condition following cancer treatment, and while it may present similarly, the term "frozen pelvis" is primarily used in a descriptive fashion for the severe adhesion formations seen in endometriosis. *Chronic pelvic inflammatory disease* - Chronic PID can cause significant pelvic adhesions, tubo-ovarian abscesses, and scarring, leading to pain and infertility. - While it can result in fixed pelvic organs, the extent and specific nature of adhesion formation in PID generally differ from the diffuse, "frozen" quality seen in severe endometriosis, which often involves broader tissue planes.

Q: What percentage of ectopic pregnancies occur in the fallopian tube?

90%. ***90%*** - Approximately **90-95%** of all ectopic pregnancies occur within the fallopian tube, making it the most common site. - The **ampulla** is the most frequent tubal site, accounting for about 80% of tubal ectopics, followed by the isthmus and fimbrial end. *75%* - While a significant percentage, **75%** falls short of the actual prevalence of tubal ectopic pregnancies. - This percentage does not accurately reflect the high frequency of implantation within the fallopian tube. *80%* - **80%** is a common statistic for ectopic pregnancies occurring in the **ampulla** specifically, which is a segment of the fallopian tube. - However, the overall percentage for all fallopian tube locations is higher than 80%. *67%* - **67%** is too low and does not represent the vast majority of ectopic pregnancies that are found within the fallopian tube. - Such a low percentage would imply a higher incidence of ectopic pregnancies in other locations (e.g., ovary, cervix, abdomen), which is not the case.

Q: Intrauterine adhesions best seen by?

Hysteroscopy. ***Hysteroscopy*** - **Hysteroscopy** provides direct visualization of the uterine cavity, allowing for precise identification and characterization of **intrauterine adhesions (IUA)** or **Asherman's syndrome**. - It not only diagnoses IUAs but also allows for simultaneous treatment through **adhesiolysis**, making it the gold standard for both diagnosis and management. *Ultrasound* - While ultrasound can sometimes suggest the presence of adhesions through abnormal endometrial appearances or fluid collections, it is generally **not definitive** for diagnosing IUAs. - Its sensitivity is limited, especially for subtle or fine adhesions, and it often requires confirmation by other methods. *Computed Tomography* - **Computed Tomography (CT)** scans are generally **not used** for the diagnosis of intrauterine adhesions. - CT provides limited soft tissue contrast in the endometrial cavity and exposes the patient to **ionizing radiation**, without offering a clear advantage over other imaging modalities. *Magnetic Resonance Imaging* - **Magnetic Resonance Imaging (MRI)** can provide good soft tissue detail and may visualize severe adhesions, but it is **not as sensitive or specific** as hysteroscopy for detecting all types of IUAs. - MRI is more expensive and less accessible than hysteroscopy, and it does not allow for immediate therapeutic intervention.

Q: Which of the following symptoms is least commonly associated with endometriosis?

Vaginal discharge. ***Vaginal discharge*** - **Vaginal discharge** is a symptom more commonly associated with **infections or cervical issues**, rather than endometriosis. - While women with endometriosis may experience occasional discharge, it is **not a primary or characteristic symptom** of the condition itself. *Infertility* - **Infertility** is a very common issue for women with endometriosis, affecting their ability to conceive due to **inflammation, scarring, and anatomical distortion** of reproductive organs. - Endometrial implants can **disrupt ovarian function**, block fallopian tubes, and create a hostile uterine environment. *Chronic pelvic pain* - **Chronic pelvic pain** is the hallmark symptom of endometriosis, often severe and debilitating. - It results from the **inflammation, adhesions, and nerve sensitization** caused by ectopic endometrial tissue growing outside the uterus. *Dyspareunia* - **Dyspareunia**, or **painful intercourse**, is frequently experienced by women with endometriosis. - This symptom typically occurs when endometrial implants are located on the **uterosacral ligaments, posterior cul-de-sac, or rectovaginal septum**, leading to irritation during deep penetration.

Q: What is the most likely cause of yellow-green watery discharge and pruritus in a female patient?

Trichomonas vaginalis. ***Trichomonas vaginalis (Correct)*** - The characteristic presentation of **yellow-green, frothy, watery vaginal discharge** with associated **pruritus** is highly suggestive of **trichomoniasis**. - Other clinical findings may include **dyspareunia**, **dysuria**, and a **"strawberry cervix"** on speculum examination. - Trichomoniasis is a sexually transmitted infection caused by the protozoan *Trichomonas vaginalis*. *Candida (Incorrect)* - **Candidiasis** (yeast infection) typically presents with **thick, white, cottage cheese-like discharge** and severe pruritus, often described as a burning sensation. - The discharge is usually not watery or yellow-green, and the characteristic fishy odor is absent. - pH is typically normal ( 4.5). *Bacterial vaginosis (Incorrect)* - **Bacterial vaginosis** is characterized by a **thin, gray-white discharge** with a **fishy odor**, especially after intercourse or with alkalinization. - The discharge is not typically yellow-green or frothy. - Pruritus may be present but is usually less prominent than with candidiasis or trichomoniasis. *Chlamydia trachomatis (Incorrect)* - **Chlamydia** infection is often **asymptomatic** in women (up to 70% of cases), but when symptoms occur, they may include **mucopurulent cervical discharge**, intermenstrial bleeding, or lower abdominal pain. - It does not typically cause the **profuse, frothy, yellow-green discharge** with significant pruritus described in this clinical presentation. - Chlamydia primarily causes cervicitis rather than vaginitis.

Q: Most common congenital uterine anomaly is?

Septate uterus. ***Septate uterus*** - A septate uterus is the most common congenital uterine anomaly, characterized by a **fibrous or muscular septum** dividing the uterine cavity. - This anomaly results from incomplete resorption of the **müllerian ducts** during development. *Bicornuate uterus* - A bicornuate uterus involves **two uterine horns** that are partially or completely separate, leading to a heart-shaped uterus. - While relatively common, it is **less prevalent** than the septate uterus. *Unicornuate uterus* - A unicornuate uterus is an anomaly where only **one side of the müllerian duct develops**, resulting in a uterus with only one horn and one fallopian tube. - This is a **rare anomaly** compared to septate and bicornuate uteri. *Arcuate uterus* - An arcuate uterus is considered a **mild variant of a normal uterus**, with a slight indentation in the fundus. - It often has **no clinical significance** and is less severe than other anomalies.

Q: At which gestational week does the maximum volume of amniotic fluid occur?

36 weeks. ***36 weeks*** - The volume of **amniotic fluid** gradually increases during pregnancy, reaching its **peak** around **36 weeks** of gestation. - After 36 weeks, the volume of amniotic fluid typically begins to **decrease** as the pregnancy approaches term. *32 weeks* - At 32 weeks, the amniotic fluid volume is still **increasing** and has not yet reached its maximum level. - The fetus is actively growing and contributing to fluid production, but the peak is still several weeks away. *34 weeks* - Although significant, the amniotic fluid volume at 34 weeks has not yet reached its **maximum**. - The volume will continue to rise for another two weeks before plateauing and then declining. *40 weeks* - By 40 weeks, a normal-term pregnancy, the volume of amniotic fluid has typically **decreased** from its peak at 36 weeks. - A declining amniotic fluid volume (oligohydramnios) can be a concern at term if it's too low.

Q: Uterine rupture is most common in -

Anterior lower segment. ***Anterior lower segment*** - The **anterior lower segment** is the most common site for **uterine rupture** due to prior **cesarean sections** or other uterine surgeries which are often performed anteriorly. - This area is thinner and more prone to stretching and tearing during labor, especially in cases of repeated surgical scars. *Posterior lower segment* - While rupture can occur in the **posterior lower segment**, it is less common than the anterior location. - This area is usually less stressed by previous surgical incisions compared to the anterior wall. *Upper uterine segment* - Rupture in the **upper uterine segment** typically involves an **unscarred uterus** and is a rare event, often associated with a **grand multiparous patient** or **oxytocin hyperstimulation**. - This type of rupture is usually spontaneous and more catastrophic due to the rich vascularity of the upper segment. *Lateral uterine wall* - Rupture of the **lateral uterine wall** is uncommon and usually associated with **trauma** or **manual extraction of the placenta**, rather than prior surgical scars. - It is not the most frequent site for spontaneous or scar-related uterine rupture.

Q: Which nerve block is given in forceps delivery?

Pudendal. ***Pudendal*** - A **pudendal block** anesthetizes the **perineum, vulva, and lower vagina**, providing pain relief for instrumental deliveries like **forceps delivery** and for episiotomy. - It involves injecting a local anesthetic near the **pudendal nerve** as it passes posterior to the **ischial spine**. *Posterior femoral* - The **posterior femoral cutaneous nerve** primarily innervates the skin of the posterior thigh and part of the perineum but does not provide sufficient deep analgesia for a forceps delivery. - Blocking this nerve alone would not adequately cover the extensive area affected during instrumental delivery. *Genitofemoral* - The **genitofemoral nerve** primarily innervates the skin of the upper medial thigh and parts of the genitalia but is not the primary nerve for pain relief during vaginal delivery procedures. - Its blockade would not provide the comprehensive analgesia needed for a forceps delivery. *Ilio inguinal* - The **ilioinguinal nerve** innervates the skin of the groin, mons pubis, and labia majora but does not provide sufficient anesthesia for the deeper structures involved in a forceps delivery. - An ilioinguinal nerve block is more commonly used for pain control in procedures involving the groin or hernia repair, not for instrumental vaginal delivery.

Question 1

In which condition is a frozen pelvis commonly observed?

Accepted Answer

Severe endometriosis

Answer

Chronic pelvic inflammatory disease

Answer

Post-radiation pelvic fibrosis

Answer

Advanced cervical carcinoma

Question 2

What percentage of ectopic pregnancies occur in the fallopian tube?

Accepted Answer

90%

Answer

75%

Answer

80%

Answer

67%

Question 3

Intrauterine adhesions best seen by?

Accepted Answer

Hysteroscopy

Answer

Ultrasound

Answer

Computed Tomography

Answer

Magnetic Resonance Imaging

Question 4

Which of the following symptoms is least commonly associated with endometriosis?

Accepted Answer

Vaginal discharge

Answer

Infertility

Answer

Chronic pelvic pain

Answer

Dyspareunia

Question 5

What is the most likely cause of yellow-green watery discharge and pruritus in a female patient?

Accepted Answer

Trichomonas vaginalis

Answer

Candida

Answer

Bacterial vaginosis

Answer

Chlamydia trachomatis

Question 6

Most common congenital uterine anomaly is?

Accepted Answer

Septate uterus

Answer

Bicornuate uterus

Answer

Unicornuate uterus

Answer

Arcuate uterus

Question 7

At which gestational week does the maximum volume of amniotic fluid occur?

Accepted Answer

36 weeks

Answer

32 weeks

Answer

34 weeks

Answer

40 weeks

Question 8

Uterine rupture is most common in -

Accepted Answer

Anterior lower segment

Answer

Posterior lower segment

Answer

Upper uterine segment

Answer

Lateral uterine wall

Question 9

Which nerve block is given in forceps delivery?

Accepted Answer

Pudendal

Answer

Posterior femoral

Answer

Genitofemoral

Answer

Ilioinguinal

NEET-PG 2013 — Obstetrics and Gynecology