Contraception and Family Planning Practice Questions

Q: Which of the following is a spermicidal agent?

All of the above. **Explanation:** Spermicides are chemical barrier methods of contraception that work by disrupting the cell membrane of the spermatozoa, leading to their immobilization and death. **Why "All of the above" is correct:** The primary mechanism of action for most chemical spermicides is the use of **surfactants**. These agents lower surface tension and destroy the lipoprotein layer of the sperm's cell membrane. * **Nonoxynol-9:** This is the most widely used spermicidal agent globally. It is a non-ionic surfactant that acts rapidly upon contact with sperm. * **Menfegol:** This is a foaming agent (often used in vaginal tablets) that acts as a potent spermicide by disrupting the sperm membrane. * **Octoxynol-9:** Similar to Nonoxynol, it is a surfactant used in various contraceptive creams and jellies. **Clinical Pearls for NEET-PG:** * **Mechanism:** Spermicides are **cytotoxic**; they kill sperm by damaging the cell membrane (acrosome and midpiece). * **Failure Rate:** When used alone, spermicides have a high failure rate (Pearl Index of ~18–28 per 100 woman-years). They are most effective when used in combination with mechanical barriers like condoms or diaphragms. * **HIV/STI Risk:** Contrary to older beliefs, Nonoxynol-9 does **not** protect against HIV or STIs. In fact, frequent use can cause vaginal/cervical irritation and micro-abrasions, potentially **increasing** the risk of HIV transmission. * **Forms:** They are available as foams, jellies, creams, tablets (e.g., Today), and soluble films. They must be inserted into the vagina 10–15 minutes before intercourse to be effective.

Q: Which of the following is a third-generation Intrauterine Contraceptive Device (IUCD)?

Mirena. **Explanation:** Intrauterine Contraceptive Devices (IUCDs) are classified into generations based on their composition and mechanism of action. **Mirena** is a third-generation IUCD because it is a **hormone-releasing system**. Unlike earlier versions, third-generation devices combine the mechanical effect of an IUD with the continuous release of a progestogen (Levonorgestrel, 20 µg/day). This provides superior contraceptive efficacy and non-contraceptive benefits, such as reducing menstrual blood loss. **Analysis of Options:** * **Option B (Mirena):** Correct. It is the prototype of the third generation (Hormonal IUCDs). Other examples include Progestasert and LNG-20. * **Options A, C, and D:** These are all **second-generation IUCDs**. * **CuT 380A:** A high-load copper device (380 $mm^2$ surface area) with a 10-year lifespan. * **ML CuT 250:** A Multiload device with 250 $mm^2$ of copper. * **Copper 7:** A first-generation copper device (now largely obsolete). **High-Yield Clinical Pearls for NEET-PG:** * **Generations:** * 1st Gen: Non-medicated/Inert (e.g., Lippes Loop). * 2nd Gen: Medicated with Copper (e.g., CuT 200, 380A, Nova T). * 3rd Gen: Medicated with Hormones (e.g., Mirena, LNG-IUD). * **Mechanism of Mirena:** Primarily causes cervical mucus thickening and endometrial atrophy; it is the **Gold Standard** for treating Menorrhagia (DUB). * **Ideal Candidate:** Multiparous women in a stable monogamous relationship. * **Failure Rate:** Mirena has the lowest failure rate (0.2%), comparable to sterilization.

Q: Which of the following is NOT a barrier contraceptive?

Centchroman. **Explanation:** The correct answer is **Centchroman** because it is a **hormonal/pharmacological** contraceptive, not a mechanical barrier. **1. Why Centchroman is the correct answer:** Centchroman (marketed as **Saheli** or **Chhaya**) is a Non-Steroidal, Non-Hormonal Oral Contraceptive Pill. It belongs to the class of **Selective Estrogen Receptor Modulators (SERMs)**. It works by preventing the implantation of the blastocyst by altering the endometrial receptivity (asynchrony between the embryo and endometrium). Since it does not physically block the sperm from reaching the ovum, it is not a barrier method. **2. Why the other options are incorrect:** * **A. Diaphragm:** A mechanical barrier device made of latex or silicone that is inserted into the vagina to cover the cervix. * **C. Condom:** The most common mechanical barrier method (available for both males and females) that prevents sperm from entering the female reproductive tract. * **D. Today:** This is the brand name for a **Vaginal Contraceptive Sponge**. It acts as a triple barrier: it provides a physical block to the cervix, absorbs semen, and contains the spermicide Nonoxynol-9. **High-Yield Clinical Pearls for NEET-PG:** * **Centchroman Dosage:** It is a "Once-a-week" pill. The schedule is twice a week for the first 3 months, followed by once a week thereafter. * **Drug of Choice:** Centchroman is the contraceptive of choice for lactating mothers and women where steroidal pills are contraindicated. * **Barrier Methods & STIs:** Barrier methods (specifically condoms) are the only contraceptives that provide protection against Sexually Transmitted Infections (STIs) and HIV. * **Failure Rate:** Barrier methods generally have a higher failure rate (Pearl Index) compared to hormonal methods due to user dependency.

Q: What is the coil memory of a CuT380A IUD device?

5 minutes. **Explanation:** The correct answer is **5 minutes (Option D)**. **Understanding the Concept:** The CuT380A is a T-shaped intrauterine device (IUD) made of polyethylene. To facilitate insertion through the cervix, the horizontal arms of the "T" must be folded down and tucked into the insertion tube. **Coil memory** refers to the property of the plastic frame to return to its original "T" shape once released from the tube. If the IUD remains folded inside the insertion tube for longer than **5 minutes**, the plastic undergoes "stress relaxation," losing its memory. This prevents the arms from fully expanding once inside the uterine cavity, significantly increasing the risk of **expulsion** or **malposition**, which compromises contraceptive efficacy. **Analysis of Options:** * **A, B, and C (2, 3, and 4 minutes):** These timeframes are within the safe window. While the device will retain its memory if kept in the tube for this long, the maximum threshold established by clinical guidelines (WHO and manufacturer protocols) is 5 minutes. * **D (5 minutes):** This is the standard clinical cutoff. Practitioners are advised not to load the IUD into the inserter until the cervix is visualized and the sound has been performed to ensure the device is not loaded for more than 5 minutes. **High-Yield Clinical Pearls for NEET-PG:** * **CuT380A Lifespan:** 10 years (FDA approved). * **Surface Area:** The "380" signifies 380 $mm^2$ of copper wire and sleeves. * **Ideal Insertion Time:** During menstruation or within 10 days of the LMP (to ensure the patient is not pregnant and the cervical os is slightly dilated). * **Mechanism:** Primarily spermicidal; it causes a sterile inflammatory response in the endometrium. * **Emergency Contraception:** CuT380A is the most effective method of emergency contraception if inserted within 5 days of unprotected intercourse.

Q: Which of the following is important in the calculation of the Pearl Index?

Total accidental pregnancies. The **Pearl Index** is the most common method used in clinical trials to report the effectiveness of a contraceptive method. It calculates the number of unintended pregnancies per 100 woman-years of exposure. ### Why the Correct Answer is Right The formula for the Pearl Index is: $$\text{Pearl Index} = \frac{\text{Total Accidental Pregnancies} \times 1200}{\text{Total Months of Exposure (Usage)}}$$ * **Total Accidental Pregnancies (Numerator):** This is the core variable representing "method failure" or "user failure." Without the number of pregnancies, the failure rate cannot be determined. * **1200:** This constant represents 100 women over 12 months (1 year). ### Why Other Options are Wrong * **A. Number of abortions:** The Pearl Index tracks *conception* (accidental pregnancy), regardless of the outcome (birth, miscarriage, or abortion). * **C. Socioeconomic status:** While this may influence contraceptive choice or compliance in a population study, it is not a mathematical variable in the Pearl Index formula. * **D. Total gestational period:** The index measures the time the woman was *at risk* of conceiving while using the method, not the duration of the pregnancy itself. ### High-Yield Clinical Pearls for NEET-PG * **Interpretation:** A lower Pearl Index indicates a more effective contraceptive method. * **Most Effective:** Implants (e.g., Nexplanon) have the lowest Pearl Index (~0.05). * **Least Effective:** Barrier methods and natural methods (e.g., Rhythm method) have higher Pearl Indices. * **Limitation:** The Pearl Index often decreases over time because "high-fertility" couples conceive early, leaving "low-fertility" couples in the study longer. * **Alternative:** The **Life Table Analysis** is considered more accurate than the Pearl Index as it calculates failure rates at specific intervals (e.g., at 6 months, 12 months).

Q: What is the best hormonal contraceptive for a patient with sickle cell anemia?

Progestogen-Only Pill (POP). ### Explanation **Correct Answer: B. Progestogen-Only Pill (POP)** **Why it is correct:** In patients with Sickle Cell Anemia (SCA), the primary goal of contraception is to avoid triggers for vaso-occlusive crises (VOC). **Progestogens** (specifically POPs, DMPA, or implants) are the preferred hormonal choice because they have been shown to **reduce the frequency and intensity of painful crises**. The underlying mechanism involves the stabilization of the red blood cell membrane, which inhibits the sickling process. Additionally, progestogens reduce menstrual blood loss, helping to manage the chronic anemia often seen in these patients. **Why the other options are incorrect:** * **A. Oral Contraceptive Pill (OCP):** Combined OCPs contain estrogen. Estrogen is generally avoided or used with caution in SCA because it is pro-thrombotic. Since SCA is already a hypercoagulable state with a high risk of stroke and thromboembolism, adding estrogen increases the risk of vascular complications. * **C. Copper T (Cu-T):** While not hormonal, the Copper T often causes increased menstrual bleeding (menorrhagia) and dysmenorrhea. In a patient with baseline hemolytic anemia, any increase in blood loss can worsen their clinical status. * **D. None of the above:** Incorrect, as POPs are a recognized and recommended option. **High-Yield Clinical Pearls for NEET-PG:** * **DMPA (Depot Medroxyprogesterone Acetate)** is often cited in literature as the "gold standard" for SCA because it significantly reduces VOC, but among the options provided, POP is the best hormonal choice. * **WHO Eligibility Criteria (MEC):** Progestogen-only methods are **MEC Category 1** (no restriction) for Sickle Cell Disease. * **Levonorgestrel Intrauterine System (LNG-IUS)** is also an excellent choice as it reduces menstrual blood loss significantly. * **Avoid Estrogen:** Always remember that Estrogen + Sickle Cell = Increased Risk of Thrombosis.

Question 1

Incidence of ectopic pregnancy is highest with which of the following contraceptive methods?

Accepted Answer

Progestogen-only contraceptives

Answer

Oral contraceptive pills

Answer

Copper T Intrauterine Contraceptive Device (IUCD)

Answer

Multiload Intrauterine Contraceptive Device (IUCD)

Question 2

Which of the following is a spermicidal agent?

Accepted Answer

All of the above

Answer

Nonoxynol

Answer

Menfegol

Answer

Octoxynol

Question 3

Which of the following is the best explanation for the mechanism of action of the intrauterine device (IUD)?

Accepted Answer

A sterile inflammatory response of the endometrium prevents implantation.

Answer

Hyperperistalsis of the fallopian tubes accelerates oocyte transport and prevents fertilization.

Answer

A subacute or chronic bacterial endometritis interferes with implantation.

Answer

Premature endometrial sloughing associated with menorrhagia causes early abortion.

Question 4

Which of the following is a third-generation Intrauterine Contraceptive Device (IUCD)?

Accepted Answer

Mirena

Answer

ML CuT 250

Answer

CuT 380A

Answer

Copper 7

Question 5

Which of the following is NOT a barrier contraceptive?

Accepted Answer

Centchroman

Answer

Diaphragm

Answer

Condom

Answer

Today

Question 6

What is the coil memory of a CuT380A IUD device?

Accepted Answer

5 minutes

Answer

2 minutes

Answer

3 minutes

Answer

4 minutes

Question 7

Which of the following is important in the calculation of the Pearl Index?

Accepted Answer

Total accidental pregnancies

Answer

Number of abortions

Answer

Socioeconomic status

Answer

Total gestational period

Question 8

The 'banana sign' and 'lemon sign' are associated with which fetal anomaly?

Accepted Answer

Neural tube defect

Answer

Hydrops fetalis

Answer

Multiple gestation (twins)

Answer

Intrauterine demise (IUD)

Question 9

What is an absolute contraindication for Norplant?

Accepted Answer

Acute thrombophlebitis

Answer

Hypertension

Answer

Diabetes mellitus

Answer

Hypercholesterolemia

Question 10

What is the best hormonal contraceptive for a patient with sickle cell anemia?

Accepted Answer

Progestogen-Only Pill (POP)

Answer

Oral Contraceptive Pill (OCP)

Answer

Copper T Intrauterine Device (Cu-T)

Answer

None of the above

Contraception and Family Planning — MCQs

Contraception and Family Planning — MCQs

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