UPSC-CMS 2013 - Obstetrics and Gynecology PYQs Practice Questions

Q: During pregnancy, vaccination can be given against all these diseases except :

Mumps. ***Mumps*** - The **mumps vaccine** is a **live attenuated vaccine**, meaning it contains a weakened form of the virus. - Live attenuated vaccines are generally **contraindicated in pregnancy** due to the theoretical risk of transmitting the vaccine virus to the fetus. *Hepatitis A* - The **Hepatitis A vaccine** is an **inactivated (killed) vaccine**. - Inactivated vaccines are generally considered **safe during pregnancy** if there's a significant risk of exposure. *Tetanus* - The **tetanus toxoid vaccine (Tdap)** is recommended during every pregnancy to protect the newborn from **pertussis (whooping cough)** and provide maternal protection against tetanus. - It is an **inactivated vaccine** and is very safe for both mother and fetus. *Hepatitis B* - The **Hepatitis B vaccine** is a **recombinant vaccine**, meaning it's made from a component of the virus. - It is considered **safe in pregnancy** and is recommended for pregnant women at risk of acquiring hepatitis B. [Practice more Obstetrics and Gynecology PYQs on OnCourse]

Q: What is the likely cause of primary amenorrhoea together with retention of urine in an adolescent girl ?

Haematocolpos. ***Haematocolpos*** - **Haematocolpos** is the accumulation of menstrual blood in the vagina due to an **imperforate hymen** or other outflow obstruction, causing primary amenorrhoea. - The retained blood can exert pressure on the urethra and bladder, leading to **urinary retention**. *Testicular Feminizing syndrome* - Also known as **Androgen Insensitivity Syndrome**, individuals have a 46, XY karyotype but appear female externally due to androgen receptor defects. - It causes primary amenorrhoea but typically does not present with urinary retention as the Mullerian ducts regress, meaning there is no uterus and therefore no menstrual blood to accumulate. *Adrenal hyperplasia* - **Congenital adrenal hyperplasia (CAH)** can cause virilization in females, leading to ambiguous genitalia and primary amenorrhoea due to hormonal imbalances. - While it can affect reproductive development, urinary retention due to menstrual blood accumulation is not a typical presentation. *Turner's syndrome* - **Turner's syndrome (45, XO)** is characterized by ovarian dysgenesis and primary amenorrhoea due to the absence of ovarian function. - Individuals often have distinctive features like a short stature and a webbed neck, but urinary retention is not a direct consequence of the syndrome itself. [Practice more Obstetrics and Gynecology PYQs on OnCourse]

Q: Histological type of endometrium that is suggestive of ovulation is :

secretory phase. ***secretory phase*** - The **secretory phase** of the endometrium occurs *after* ovulation and is characterized by the effects of **progesterone** produced by the corpus luteum. - Histologically, this phase shows **tortuous glands** with **secretory activity** (containing glycogen and mucus), and a **stroma that becomes edematous**, preparing the uterus for potential implantation. *cystic glandular hyperplasia* - This is a form of **endometrial hyperplasia** characterized by abundant, dilated glands of varying sizes and stroma, typically occurring due to **unopposed estrogen stimulation**. - It does not indicate ovulation; rather, it often results from **anovulation** or other conditions causing persistent estrogen exposure without a subsequent progesterone phase. *adenomatous hyperplasia* - **Adenomatous hyperplasia** (or complex hyperplasia) involves glandular crowding and architectural abnormalities, representing a more advanced form of hyperplasia compared to simple cystic hyperplasia. - It arises from **unopposed estrogen** and is not indicative of normal ovulation; it can be a precursor to endometrial carcinoma, especially if **atypia** is present. *proliferative phase* - The **proliferative phase** occurs *before* ovulation under the influence of **estrogen**, during which the endometrium regrows and thickens. - Histologically, it features relatively **straight, tubular glands** and a compact stroma, and while it precedes ovulation, it does not confirm that ovulation has occurred. [Practice more Obstetrics and Gynecology PYQs on OnCourse]

Q: A pregnant woman in third trimester has normal blood pressure in the arms when standing and sitting but drops to 90/50 when lying down. What is the likely cause?

Compression of inferior vena cava. ***Compression of inferior vena cava*** - In the third trimester, the **gravid uterus** can compress the **inferior vena cava (IVC)** when the woman lies supine, reducing **venous return** to the heart. - This decreased preload leads to a drop in **cardiac output** and consequently a fall in **blood pressure** (supine hypotensive syndrome). *Compression of uterine artery* - Compression of the uterine artery would primarily affect **placental blood flow** and fetal well-being, but it is not the direct cause of the mother's systemic hypotension. - **Uterine artery compression** does not significantly impact overall systemic blood pressure in the mother. *Compression of aorta* - While the gravid uterus can compress the **aorta** (aortocaval compression), this typically leads to reduced blood flow to the lower extremities and uterus, not a generalized drop in systemic blood pressure, as collateral circulation usually compensates. - **Aortic compression** can cause a difference in blood pressure between the upper and lower extremities, but the scenario describes a drop in overall systemic pressure when recumbent. *Compression of internal iliac artery* - Compression of the internal iliac artery would mainly affect blood supply to the **pelvic organs** and gluteal region, but it does not account for the significant drop in systemic blood pressure observed in the supine position. - This compression would not cause a generalized reduction in **venous return** to the heart, which is the primary mechanism for supine hypotension. [Practice more Obstetrics and Gynecology PYQs on OnCourse]

Q: A 15-year old unmarried girl comes with history of dysmenorrhea. Age of menarche is 12 years. Per abdominal and per rectum examination reveal nothing abnormal. You will treat the patient with :

Reassurance and giving antispasmodics during menses. ***Reassurance and giving antispasmodics during menses*** - The patient presents with **primary dysmenorrhea**, indicated by the onset of symptoms with menarche and normal pelvic examination findings in an unmarried girl. - **Antispasmodics** (e.g., NSAIDs like ibuprofen or mefenamic acid) taken during menses effectively reduce pain by inhibiting prostaglandin synthesis, which causes uterine contractions. *Reassurance and giving antispasmodics throughout the month* - While **reassurance** is appropriate, taking antispasmodics throughout the entire month is **unnecessary** and can lead to adverse effects, as the pain is cyclical and directly related to menstruation. - **Antispasmodics** are most effective when taken a day or two before the onset of menstruation and continued during the painful days. *Hormones* - **Hormonal therapy** (e.g., combined oral contraceptives) is a valid treatment option for dysmenorrhea, especially if non-steroidal anti-inflammatory drugs (NSAIDs) are ineffective or if contraception is also desired. - However, for a 15-year-old unmarried girl with typical primary dysmenorrhea and no other complications, **NSAIDs/antispasmodics** are generally the first-line and usually sufficient treatment. *Antibiotics* - **Antibiotics** are used to treat bacterial infections, and there is no indication of infection (e.g., fever, unusual discharge, pelvic inflammatory disease) in this patient's presentation. - Using antibiotics without an identified infection is inappropriate and contributes to **antibiotic resistance**. [Practice more Obstetrics and Gynecology PYQs on OnCourse]

Question 1

During pregnancy, vaccination can be given against all these diseases except :

Accepted Answer

Mumps

Answer

Hepatitis A

Answer

Tetanus

Answer

Hepatitis B

Question 2

What is the likely cause of primary amenorrhoea together with retention of urine in an adolescent girl ?

Accepted Answer

Haematocolpos

Answer

Testicular Feminizing syndrome

Answer

Adrenal hyperplasia

Answer

Turner's syndrome

Question 3

Histological type of endometrium that is suggestive of ovulation is :

Accepted Answer

secretory phase

Answer

cystic glandular hyperplasia

Answer

adenomatous hyperplasia

Answer

proliferative phase

Question 4

A pregnant woman in third trimester has normal blood pressure in the arms when standing and sitting but drops to 90/50 when lying down. What is the likely cause?

Accepted Answer

Compression of inferior vena cava

Answer

Compression of uterine artery

Answer

Compression of aorta

Answer

Compression of internal iliac artery

Question 5

A 15-year old unmarried girl comes with history of dysmenorrhea. Age of menarche is 12 years. Per abdominal and per rectum examination reveal nothing abnormal. You will treat the patient with :

Accepted Answer

Reassurance and giving antispasmodics during menses

Answer

Reassurance and giving antispasmodics throughout the month

Answer

Hormones

Answer

Antibiotics

Question 6

A pregnant lady with 37 weeks gestation has been admitted with a history of premature rupture of membranes for 6 hours. She is best treated with:

Accepted Answer

antibiotics followed by labour induction

Answer

steroids followed by labour induction

Answer

expectant management

Answer

steroids and tocolytic agents

Question 7

Use of ventose is preferred over forceps in the delivery of :

Accepted Answer

occipito posterior position

Answer

face presentation

Answer

aftercoming head in breech

Answer

foetal distress

Question 8

Normal pH of foetal scalp blood is :

Accepted Answer

7.30

Answer

7.20

Answer

7.0

Answer

7.10

Question 9

Face to pubis delivery is common in which type of pelvis ?

Accepted Answer

Anthropoid

Answer

Android

Answer

Gynaecoid

Answer

Platypelloid

Question 10

The following are the signs of placental separation except :

Accepted Answer

The fundal height decreases

Answer

The uterus becomes hard and globular

Answer

Permanent lengthening of the cord

Answer

Fresh bleeding occurs

UPSC-CMS 2013 — Obstetrics and Gynecology