Fertility and Infertility Practice Questions

Q: What is the gold standard investigation for uterine cavity evaluation?

Hysteroscopy. **Explanation:** **Hysteroscopy** is considered the **gold standard** for evaluating the uterine cavity because it allows for direct visualization of the endometrium and the internal architecture of the uterus. Unlike indirect imaging, it provides real-time assessment of the size, shape, and vascularity of any intrauterine pathology (such as polyps, submucosal fibroids, or synechiae) and offers the unique advantage of "see-and-treat"—allowing for simultaneous diagnosis and operative intervention (biopsy or resection). **Analysis of Incorrect Options:** * **Ultrasonography (USG):** Usually the first-line screening tool. While excellent for assessing the myometrium and ovaries, its sensitivity for small intrauterine lesions is lower than hysteroscopy. * **Saline Infusion Sonography (SIS):** Better than a routine USG for detecting intracavitary lesions as the saline distends the cavity. However, it remains an indirect method and cannot provide a definitive histological diagnosis or immediate treatment. * **Hysterosalpingography (HSG):** Primarily used to assess **tubal patency**. While it can show filling defects in the uterus, it has a high false-positive rate and cannot distinguish between different types of intrauterine masses. **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard for Tubal Patency:** Laparoscopic Chromopertubation. * **Best time for Hysteroscopy:** Early follicular phase (Day 6 to Day 10), when the endometrium is thinnest. * **Distension Media:** CO2 (diagnostic), Normal Saline (bipolar cautery), or Glycine (monopolar cautery). * **HSG Timing:** Performed in the pre-ovulatory phase (Day 7 to Day 10) to avoid interfering with a potential pregnancy and to ensure the endometrium is thin.

Q: Which of the following is NOT an indication for artificial insemination with husband's semen?

Azoospermia. **Explanation:** Artificial Insemination with Husband’s Semen (AIH) is a technique where the husband's processed sperm is placed directly into the female reproductive tract. The fundamental requirement for AIH is the **presence of viable spermatozoa** in the husband's ejaculate or retrieved via minor surgical procedures. **Why Azoospermia is the Correct Answer:** Azoospermia is defined as the total absence of spermatozoa in the ejaculate. Since AIH relies on using the husband's own sperm, it is impossible to perform if no sperm are available. In cases of absolute azoospermia (specifically non-obstructive), the couple must opt for **Artificial Insemination with Donor semen (AID)** or IVF/ICSI if testicular sperm extraction is not feasible. **Analysis of Incorrect Options:** * **Impotence (A):** This is a common indication for AIH. If the husband cannot achieve or maintain an erection for vaginal intercourse, semen can be collected via masturbation or vibratory stimulation and used for insemination. * **Unexplained Infertility (B):** AIH (specifically Intrauterine Insemination - IUI) is a first-line treatment for unexplained infertility, often combined with mild ovarian stimulation to increase the density of motile sperm near the oocyte. * **Blockage of the Ejaculatory Duct (D):** This is a form of obstructive azoospermia. While sperm is absent in the ejaculate, it is still being produced. In such cases, sperm can be retrieved directly from the epididymis (PESA/MESA) or testes (TESA) and used for AIH/IUI or ICSI. **High-Yield Clinical Pearls for NEET-PG:** * **IUI Timing:** Usually performed 36 hours after hCG "trigger" injection. * **Sperm Requirement:** For successful IUI, the post-wash Total Motile Sperm Count (TMSC) should ideally be >5–10 million. * **Cervical Factor:** AIH is the treatment of choice for infertility caused by hostile cervical mucus or cervical stenosis.

Q: In semen banks, at what temperature is semen preserved?

Liquid nitrogen. **Explanation:** **Correct Answer: C. Liquid nitrogen** The standard method for long-term preservation of semen (cryopreservation) is storage in **liquid nitrogen at -196°C**. At this ultra-low temperature, all metabolic activities of the spermatozoa are suspended, effectively "stopping the clock" on cellular aging and preventing biochemical reactions that would lead to cell death. This process typically involves the use of cryoprotectants (like glycerol) to prevent the formation of intracellular ice crystals, which would otherwise rupture the sperm cell membrane. **Why other options are incorrect:** * **Dry Ice (Solid CO₂):** Maintains a temperature of approximately **-78.5°C**. While cold, this is insufficient for long-term stability; metabolic processes are not completely halted, leading to rapid deterioration of sperm quality. * **Deep Freeze:** Standard medical deep freezers reach **-20°C to -80°C**. These temperatures are used for short-term storage of certain reagents or vaccines but are inadequate for preserving the structural integrity of gametes over months or years. * **Liquid Air:** While it can reach temperatures around -190°C, it is highly unstable and poses a significant **fire/explosion hazard** because the liquid oxygen component can react violently with organic materials. **High-Yield Clinical Pearls for NEET-PG:** * **Quarantine Period:** Semen samples are typically frozen and quarantined for **6 months** before use to re-test the donor for HIV, Hepatitis B, and Hepatitis C (due to the window period of these infections). * **Cryoprotectant:** **Glycerol** is the most commonly used agent to protect sperm from cold shock. * **Post-thaw Motility:** Usually, 50% or more of the initial motility is lost during the freezing and thawing process. * **Vitrification:** A "flash-freezing" technique used more commonly for oocytes and embryos to avoid ice crystal formation.

Q: What percentage of infertility cases are attributed to male factors?

30%. **Explanation:** Infertility is defined as the inability of a couple to conceive after 12 months of regular, unprotected intercourse. Statistically, infertility is a "couple's issue," with contributions from both partners. According to standard textbooks like **Dutta and Jeffcoate**, the distribution of infertility factors is generally categorized as follows: * **Male Factors:** ~30–40% * **Female Factors:** ~40–50% (Tubal/Peritoneal: 25-30%, Ovulatory: 15-20%, Endometriosis: 5-10%) * **Combined (Both):** ~10–20% * **Unexplained:** ~10% **Why 30% is correct:** While some studies suggest male factors contribute to up to 40% of cases, in the context of standard medical examinations like NEET-PG, **30%** is the most widely accepted figure for isolated male factor infertility. **Analysis of Incorrect Options:** * **A (5%):** This is far too low; male factors are a primary cause in nearly one-third of all cases. * **B (20%):** This underestimates the prevalence. While 20% may represent the "combined" factor group, it does not account for the total male contribution. * **D (50%):** This is an overestimation for isolated male factors. However, if you combine isolated male factors with "combined factors," the male contribution can approach 50%, but as a standalone category, 30% is the standard. **High-Yield Clinical Pearls for NEET-PG:** 1. **Initial Investigation:** Semen analysis is the first and most important step in evaluating the male partner. 2. **Most Common Cause:** Idiopathic oligospermia is the most common cause of male infertility, while **Varicocele** is the most common *identifiable* surgical cause. 3. **WHO Criteria (2021):** Remember the lower reference limits: Volume ≥1.4 mL, Concentration ≥16 million/mL, Total Motility ≥42%, and Normal Morphology ≥4%.

Q: Which of the following methods for assessment of female infertility during a menstrual cycle can best predict the timing of ovulation?

Hormonal Study. **Explanation:** The assessment of ovulation is a cornerstone of infertility evaluation. Among the options provided, **Hormonal Study** is the most reliable and precise method for predicting and confirming the timing of ovulation. **1. Why Hormonal Study is Correct:** The "Gold Standard" for predicting ovulation is the detection of the **LH (Luteinizing Hormone) surge**. Monitoring serum or urinary LH levels can predict ovulation approximately **24–36 hours** before it occurs. Additionally, a mid-luteal phase (Day 21) serum progesterone level >3 ng/mL confirms that ovulation has taken place. These hormonal markers provide objective, quantifiable data compared to physical signs. **2. Why Other Options are Incorrect:** * **Basal Body Temperature (BBT):** BBT rises (0.5–1.0°F) due to the thermogenic effect of progesterone. However, this rise occurs **after** ovulation has already happened. It is a retrospective tool and is easily influenced by fever, stress, or irregular sleep, making it poor for precise prediction. * **Fern Test & Spinnbarkeit Phenomenon:** These reflect high estrogen levels (pre-ovulatory phase) which cause the cervical mucus to become thin, stretchy, and exhibit a ferning pattern on microscopy. While they indicate the *approach* of ovulation, they are subjective, can be affected by infections, and do not pinpoint the exact timing as accurately as an LH surge. **Clinical Pearls for NEET-PG:** * **Most accurate method to *predict* ovulation:** LH Surge (Urinary kits). * **Most accurate method to *confirm* ovulation:** Mid-luteal Progesterone or Serial Transvaginal Ultrasound (showing follicle disappearance/collapse). * **Spinnbarkeit:** Refers to the "stretchability" of mucus; maximum stretch (10-12 cm) occurs just before ovulation. * **Mittelschmerz:** Mid-cycle pelvic pain associated with ovulation.

Q: In which case homologous artificial insemination is used in females?

Cervical factor. **Explanation:** **Homologous Artificial Insemination (AIH)** involves the clinical deposition of the husband's processed semen into the female reproductive tract (usually intrauterine). The primary goal is to bypass barriers that prevent sperm from reaching the fallopian tubes naturally. **Why Cervical Factor is Correct:** In cases of **cervical factor infertility**, the cervical mucus may be hostile (due to antisperm antibodies) or too thick/scanty to allow sperm penetration. By performing Intrauterine Insemination (IUI), the sperm is placed directly into the uterine cavity, effectively **bypassing the cervical barrier**. This is a classic indication for AIH. **Why Other Options are Incorrect:** * **Tubal Block:** For AIH/IUI to be successful, at least one fallopian tube must be **patent** (open) to allow the sperm to meet the egg for fertilization. If both tubes are blocked, the only viable option is In-Vitro Fertilization (IVF). * **Hormonal Disturbance:** While hormonal issues (like anovulation) cause infertility, they are primarily managed with **ovulation induction** (e.g., Clomiphene or Gonadotropins). AIH may be used as an adjunct, but it does not directly treat the hormonal pathology itself. **High-Yield NEET-PG Pearls:** * **Indications for AIH:** Unexplained infertility, cervical factor, mild male factor (oligozoospermia), and anatomical defects like hypospadias or retrograde ejaculation. * **Prerequisite:** A hysterosalpingogram (HSG) or laparoscopy must confirm **tubal patency** before attempting AIH. * **Semen Processing:** Raw semen is never injected into the uterus; it must be "washed" to remove prostaglandins, which can cause severe uterine contractions and anaphylaxis.

Q: Which of the following is used as a surrogate for the endogenous LH surge in IVF?

HCG. **Explanation:** In the final stages of Controlled Ovarian Hyperstimulation (COH) for IVF, the **endogenous LH surge** must be simulated to induce final oocyte maturation and trigger ovulation. **Why HCG is the Correct Answer:** Human Chorionic Gonadotropin (HCG) is the most commonly used surrogate for LH because it shares a common **alpha-subunit** with LH and has a **beta-subunit** that is structurally similar. Crucially, HCG binds to the same **LH/hCG receptor** on the granulosa cells. Due to its longer half-life (>24 hours compared to 60 minutes for LH), a single bolus of HCG effectively mimics the mid-cycle LH surge, leading to the resumption of meiosis in the oocyte and luteinization of the follicle. **Analysis of Incorrect Options:** * **IGF (Insulin-like Growth Factor):** This is a growth factor that modulates the action of FSH on granulosa cells but does not trigger ovulation. * **GnRH (Gonadotropin-Releasing Hormone):** While GnRH *agonists* can be used to trigger an endogenous LH surge (the "GnRH trigger"), GnRH itself is a hypothalamic hormone, not a surrogate for the surge. * **HMG (Human Menopausal Gonadotropin):** This contains both FSH and LH activity and is used for **follicular recruitment and growth**, not for the final trigger. **High-Yield Clinical Pearls for NEET-PG:** * **Timing:** Oocyte retrieval is typically performed **34–36 hours** after the HCG "trigger" shot. * **Dose:** Standard dose is 5,000–10,000 IU of urinary HCG or 250 mcg of recombinant HCG (Ovidrel). * **Complication:** HCG is the primary driver of **Ovarian Hyperstimulation Syndrome (OHSS)**. In high-risk patients, a GnRH agonist trigger is preferred to reduce this risk.

Q: Sperm interaction with cervical mucus is assessed by which test?

Sims-Huhner test. **Explanation:** The **Sims-Huhner test**, also known as the **Post-Coital Test (PCT)**, is the traditional method used to evaluate the interaction between spermatozoa and the cervical mucus. It assesses the ability of sperm to penetrate and survive within the cervical environment. * **Why Option B is correct:** The test is performed during the pre-ovulatory phase (when mucus is thin and stretchy). The couple has intercourse, and 2–12 hours later, a sample of cervical mucus is aspirated. A "normal" result typically shows >10 motile sperm per high-power field (HPF), indicating compatible sperm-mucus interaction. **Analysis of Incorrect Options:** * **A. Friedman test:** An obsolete bioassay formerly used for pregnancy diagnosis (involving the injection of urine into a female rabbit). * **C. Rubin's test:** An outdated method to check fallopian tube patency by insufflating the uterus with Carbon Dioxide ($CO_2$). It has been replaced by Hysterosalpingography (HSG) and Laparoscopy. * **D. Papanicolaou test (Pap smear):** A screening tool used primarily for the detection of cervical precancerous and cancerous lesions, not for fertility assessment. **High-Yield Clinical Pearls for NEET-PG:** * **Timing:** The PCT must be performed just before ovulation (Day 12–14 of a 28-day cycle) when estrogen levels are high, causing the mucus to be receptive (**Spinnbarkeit** and **Ferning** positive). * **Current Status:** While historically significant, the PCT is now rarely used in routine clinical practice due to poor reproducibility and the advent of more reliable semen analysis and intrauterine insemination (IUI) protocols. * **In-vitro alternative:** The **Kurzrok-Miller test** is the in-vitro equivalent for assessing sperm-mucus penetration.

Q: Sonosalpingography is done for what purpose?

Testing tubal patency. **Explanation:** **Sonosalpingography (SSG)**, also known as saline infusion sonography, is a diagnostic procedure used primarily to **test tubal patency**. It involves the instillation of sterile saline (or a specialized contrast medium) into the uterine cavity via a catheter while performing real-time transvaginal ultrasonography. If the fallopian tubes are patent, the fluid can be seen spilling from the fimbrial ends into the Pouch of Douglas (POD). **Analysis of Options:** * **Option C (Correct):** SSG is a safe, radiation-free alternative to Hysterosalpingography (HSG) for evaluating the fallopian tubes and the uterine cavity in infertile patients. * **Option A:** Basal body temperature (BBT) is measured daily by the patient at home to retrospectively confirm ovulation, not via ultrasound procedures. * **Option B:** Pregnancy is detected via urine/serum beta-hCG levels or direct visualization of a gestational sac on routine ultrasonography. * **Option D:** Anovulatory cycles are typically diagnosed using mid-luteal progesterone levels or serial follicular monitoring (folliculometry). **High-Yield Clinical Pearls for NEET-PG:** * **Gold Standard:** Laparoscopy with **Chromopertubation** (using Methylene blue dye) remains the gold standard for assessing tubal patency. * **First-line Investigation:** Hysterosalpingography (HSG) is the most common initial screening test for tubal factors. * **Timing:** SSG/HSG should be performed during the **pre-ovulatory phase** (Day 7 to Day 10 of the menstrual cycle) to avoid disrupting an early pregnancy and to ensure the endometrium is thin. * **Advantage of SSG:** Unlike HSG, SSG avoids exposure to ionizing radiation and iodine-based contrast agents.

Question 1

What is the gold standard investigation for uterine cavity evaluation?

Accepted Answer

Hysteroscopy

Answer

Ultrasonography

Answer

Saline sonography

Answer

Hysterosalpingography

Question 2

In Vitro Fertilization (IVF) is indicated for which type of infertility?

Accepted Answer

Azoospermia

Answer

Tubal infertility

Answer

Infertility due to Pelvic Inflammatory Disease (PID)

Answer

Uterine agenesis

Question 3

Which of the following is NOT an indication for artificial insemination with husband's semen?

Accepted Answer

Azoospermia

Answer

Impotence

Answer

Unexplained infertility

Answer

Blockage of the ejaculatory duct

Question 4

In semen banks, at what temperature is semen preserved?

Accepted Answer

Liquid nitrogen

Answer

Dry ice

Answer

Deep freeze

Answer

Liquid air

Question 5

What percentage of infertility cases are attributed to male factors?

Accepted Answer

30%

Answer

5%

Answer

20%

Answer

50%

Question 6

Which of the following methods for assessment of female infertility during a menstrual cycle can best predict the timing of ovulation?

Accepted Answer

Hormonal Study

Answer

Basal Body Temperature (BBT)

Answer

Fern Test

Answer

Spinnbarkeit Phenomenon

Question 7

In which case homologous artificial insemination is used in females?

Accepted Answer

Cervical factor

Answer

Hormonal disturbance

Answer

Tubal block

Answer

All of the above

Question 8

Which of the following is used as a surrogate for the endogenous LH surge in IVF?

Accepted Answer

HCG

Answer

IGF

Answer

GnRH

Answer

HMG

Question 9

Sperm interaction with cervical mucus is assessed by which test?

Accepted Answer

Sims-Huhner test

Answer

Friedman test

Answer

Rubin's test

Answer

Papanicolaou test

Question 10

Sonosalpingography is done for what purpose?

Accepted Answer

Testing tubal patency

Answer

Measuring basal body temperature

Answer

Detecting pregnancy

Answer

Determining anovulatory cycles

Fertility and Infertility — MCQs

Fertility and Infertility — MCQs

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