Natural Family Planning Methods — MCQs
A 24 year old lactating female with an 18 month old child comes with a history of irregular, heavy bleeding seeking contraceptive advice. Which is the contraceptive of choice?
A female patient missed her oral contraceptive pill (OCP) on four different days during the first two weeks of her menstrual cycle. What is the most appropriate advice for her?
After the rise of temperature, the unsafe period lasts for what duration in the basal body temperature method?
There is a mid-cycle shift in the basal body temperature (BBT) after ovulation in women. This is caused by :
The mechanism of action of emergency contraception includes the following except:
A 34-year-old woman presents at 6 weeks of delivery. She wants contraception for the next 3 years. What will be the best contraceptive method in this case?
Which of the following is a method of natural family planning that involves tracking basal body temperature?
The contraceptive which is contraindicated in DVT is?
What is the preferred method of contraception for a female with a family history of ovarian cancer?
What are the unmet needs for contraception among women according to NFH S-3?
Natural Family Planning Methods Indian Medical PG Practice Questions and MCQs
Question 1: A 24 year old lactating female with an 18 month old child comes with a history of irregular, heavy bleeding seeking contraceptive advice. Which is the contraceptive of choice?
- A. Progestin-only pill (Correct Answer)
- B. Copper IUD
- C. Progestin-only injection
- D. Combined oral contraceptive pill
Explanation: ***Progestin-only pill*** - The **progestin-only pill (POP)** is the contraceptive of choice for lactating women because it does not affect **breast milk supply** or composition. - It works by thickening cervical mucus and thinning the **endometrium**, which can help reduce heavy bleeding and provide effective contraception. *Copper IUD* - While the **copper IUD** is a highly effective contraceptive, it is known to potentially increase **menstrual bleeding** and cramping. - Given the patient's history of **heavy bleeding**, a copper IUD might worsen her symptoms. *Progestin-only injection* - **Progestin-only injections** like DMPA are highly effective and safe for lactating women, but they can cause **irregular bleeding patterns** initially and are associated with a slower return to fertility. - While an option, the **progestin-only pill** offers more immediate control over menstrual patterns and easier discontinuation if side effects are problematic. *Combined oral contraceptive pill* - **Combined oral contraceptive pills (COCs)** contain both estrogen and progestin. Estrogen can negatively impact **milk production** and may not be suitable for breastfeeding mothers, especially in the first 6 months postpartum. - COCs are generally avoided in lactating women until breastfeeding is well-established or after 6 months to prevent interference with **lactation**.
Question 2: A female patient missed her oral contraceptive pill (OCP) on four different days during the first two weeks of her menstrual cycle. What is the most appropriate advice for her?
- A. Adopt another method of contraception
- B. Continue taking the pill
- C. Continue current pack, consider additional contraceptive method for remaining days (Correct Answer)
- D. Take all 4 pills at once and continue taking pills
Explanation: **Continue current pack, consider additional contraceptive method for remaining days** - Missing four pills in the first two weeks significantly compromises contraceptive efficacy, necessitating the use of **backup contraception** (like condoms) for the remainder of the cycle. - Continuing the current pack is important to maintain hormonal rhythm and prevent unscheduled bleeding, but it won't immediately restore full protection. *Adopt another method of contraception* - While a backup method is needed, she doesn't necessarily need to **completely abandon** OCPs, especially if she has previously tolerated them well. - The immediate concern is the current cycle's protection; a long-term change in method might be considered if adherence is a persistent issue. *Continue taking the pill* - Simply continuing the pill without additional measures is **insufficient** as the contraceptive effectiveness has been significantly compromised by missing multiple doses. - This approach would leave her at a **high risk of pregnancy** during the current cycle. *Take all 4 pills at once and continue taking pills* - Taking multiple missed pills at once is **not recommended** and can lead to **nausea, vomiting**, or irregular bleeding due to a sudden high dose of hormones. - This strategy would not restore contraceptive efficacy effectively and would increase side effects without providing better protection.
Question 3: After the rise of temperature, the unsafe period lasts for what duration in the basal body temperature method?
- A. 24 hours
- B. 48 hours
- C. 72 hours (Correct Answer)
- D. 120 hours
Explanation: ***72 hours*** - In the **basal body temperature (BBT) method**, the temperature rise indicates that **ovulation has already occurred** due to progesterone secretion from the corpus luteum. - The unsafe period continues for **3 consecutive days (72 hours)** after the temperature rise to ensure the rise is **sustained and not a transient spike**, confirming entry into the infertile luteal phase. - After 3 days of sustained elevated temperature, the ovum is no longer viable, and the woman enters the safe (infertile) period until the next menstrual cycle. *24 hours* - While the **ovum viability** is approximately 12-24 hours after ovulation, the BBT method requires observation of a **sustained temperature rise** for reliability. - Limiting the observation to 24 hours after a single temperature elevation could lead to false identification of the safe period if the rise was transient or measurement error occurred. *48 hours* - This duration provides a longer observation period than 24 hours but is still insufficient for the BBT method's standard protocol. - The **3-day rule (72 hours)** is the established guideline to confirm a sustained temperature elevation and reliable entry into the post-ovulatory infertile phase. *120 hours* - This period (5 days) is excessively long after the confirmed **basal body temperature (BBT) rise**. - Once the temperature has remained elevated for 3 consecutive days (72 hours), the fertile period has definitively ended, making a 120-hour unsafe period unnecessarily restrictive and impractical.
Question 4: There is a mid-cycle shift in the basal body temperature (BBT) after ovulation in women. This is caused by :
- A. FSH-peak
- B. Progesterone (Correct Answer)
- C. Oestradiol
- D. LH-peak
Explanation: **Progesterone** - After ovulation, the ruptured follicle transforms into the **corpus luteum**, which primarily secretes progesterone. - **Progesterone** is a **thermogenic hormone**, meaning it directly causes an increase in basal body temperature (BBT) by about 0.5 to 1.0°F (0.2 to 0.5°C). *FSH-peak* - The **FSH-peak** occurs earlier in the follicular phase, stimulating follicular growth. - It does not directly influence basal body temperature in the post-ovulatory phase. *Oestradiol* - **Oestradiol** (estrogen) levels are highest just before ovulation, which can have a slight temperature-lowering effect or no significant impact on BBT. - It is not responsible for the sustained post-ovulatory temperature rise. *LH-peak* - The **LH-peak** triggers ovulation but does not directly cause the sustained post-ovulatory increase in BBT. - The temperature shift due to LH is transient and not sustained without subsequent progesterone production.
Question 5: The mechanism of action of emergency contraception includes the following except:
- A. Degeneration of corpus luteum (Correct Answer)
- B. Prevention of implantation of fertilized egg.
- C. Inhibition of fertilization
- D. By preventing or delaying ovulation
Explanation: ***Degeneration of corpus luteum*** - Emergency contraception primarily works by interfering with ovulation and fertilization. It does **not directly cause degeneration of the corpus luteum**. - The **corpus luteum** forms after ovulation, and its degradation is a natural process (luteolysis) if pregnancy does not occur. Emergency contraception acts earlier in the reproductive process and does not target the corpus luteum. - This is the **correct answer** as it is NOT a mechanism of emergency contraception. *By preventing or delaying ovulation* - This is the **primary mechanism** of action for most forms of emergency contraception, particularly those containing **levonorgestrel (LNG)** and **ulipristal acetate (UPA)**. - By delaying the release of an egg from the ovary, it prevents the possibility of fertilization. - This is the most established and clinically significant mechanism. *Inhibition of fertilization* - Emergency contraception may affect fertilization by altering **cervical mucus** thickness, making it less penetrable to sperm. - Some evidence suggests effects on **sperm motility** or function, though this mechanism is less well-established than ovulation inhibition. - This represents a possible secondary mechanism. *Prevention of implantation of fertilized egg* - **Current evidence does NOT support this as a mechanism** for levonorgestrel or ulipristal acetate emergency contraception. - Studies by **WHO, ACOG, FIGO, and ICMR** have shown that LNG-EC is ineffective once fertilization has occurred. - The **copper IUD** used for emergency contraception may have some anti-implantation effects due to its inflammatory action on the endometrium. - However, for hormonal EC (the most common form), prevention of implantation is **not an established mechanism** based on current medical evidence.
Question 6: A 34-year-old woman presents at 6 weeks of delivery. She wants contraception for the next 3 years. What will be the best contraceptive method in this case?
- A. Nothing besides lactation amenorrhea
- B. IUCD with progesterone
- C. Injectable progesterone
- D. Copper T (Correct Answer)
Explanation: ***Copper T*** - A **Copper T intrauterine device (IUD)** is an excellent choice for long-term contraception (up to 10 years), making it suitable for her 3-year requirement. - It's **non-hormonal**, making it safe for breastfeeding mothers and avoiding potential hormonal side effects. *Nothing besides lactation amenorrhea* - **Lactational amenorrhea method (LAM)** is effective for only the first six months postpartum, provided the mother is exclusively breastfeeding and her periods have not returned. - It is not a reliable method for contraception beyond six months postpartum or for the requested 3-year duration. *IUCD with progesterone* - An **intrauterine device (IUD) with progesterone** (e.g., Mirena) can be a good long-term option, but it releases hormones which can potentially affect breastfeeding, especially if initiated very early postpartum. - While generally safe for breastfeeding, a non-hormonal option like the copper T is often preferred if there are concerns about hormonal exposure or side effects. *Injectable progesterone* - **Injectable progesterone** (e.g., Depo-Provera) is an effective contraceptive, but it needs to be administered every 3 months. - While safe for breastfeeding, it's not considered as convenient for a 3-year duration as a single-insertion IUD, and some women experience side effects like irregular bleeding or weight gain.
Question 7: Which of the following is a method of natural family planning that involves tracking basal body temperature?
- A. Coitus interruptus (withdrawal method)
- B. Safe period (calendar method)
- C. Basal body temperature (BBT) method (Correct Answer)
- D. Abstinence (not having sexual intercourse)
Explanation: ***Basal body temperature (BBT) method*** - The **basal body temperature** (BBT) method relies on a slight increase in a woman's resting body temperature, typically by 0.5 to 1.0°F, occurring after **ovulation**. - This temperature shift signals that ovulation has occurred, allowing couples to identify the **fertile window** and avoid intercourse during that time. - This method involves tracking daily basal body temperature to predict ovulation. *Coitus interruptus (withdrawal method)* - This method involves the male withdrawing his penis from the vagina just before **ejaculation**. - It does not involve tracking **basal body temperature** and has a higher failure rate compared to many other contraceptive methods due to potential pre-ejaculatory fluid containing sperm. *Safe period (calendar method)* - The calendar method, also known as the **rhythm method** or **Ogino-Knaus method**, estimates the fertile window based on the typical length of a woman's menstrual cycles. - This method relies on calculating the approximate times of ovulation and avoiding intercourse during those days; it does not involve daily **temperature tracking**. *Abstinence (not having sexual intercourse)* - **Abstinence** involves completely refraining from sexual intercourse and is the only 100% effective method of preventing pregnancy and sexually transmitted infections (STIs). - This method does not involve any form of physical tracking, such as **basal body temperature**, as there is no risk of conception.
Question 8: The contraceptive which is contraindicated in DVT is?
- A. Barrier method
- B. Non hormonal IUCD
- C. Billing's method
- D. OCP (Correct Answer)
Explanation: ***OCP*** - **Oral contraceptive pills (OCPs)**, especially those containing estrogen, increase the risk of **venous thromboembolism (VTE)**, including deep vein thrombosis (DVT). - Estrogen promotes a **hypercoagulable state** by increasing clotting factors and decreasing natural anticoagulants. *Barrier method* - **Barrier methods** like condoms or diaphragms are non-hormonal and act physically to prevent sperm from reaching the egg. - They have **no systemic effects** on coagulation and are safe for individuals with DVT. *Non hormonal IUCD* - **Non-hormonal intrauterine contraceptive devices (IUCDs)**, such as copper IUCDs, prevent conception primarily by causing a local inflammatory reaction in the uterus. - They do not release hormones and therefore **do not affect coagulation** or increase DVT risk. *Billing's method* - The **Billing's ovulation method** (cervical mucus method) is a natural family planning technique based on observing changes in cervical mucus. - It involves no medications or devices and thus has **no impact on DVT risk**.
Question 9: What is the preferred method of contraception for a female with a family history of ovarian cancer?
- A. Progestin-only pills (POP)
- B. Copper intrauterine device (Cu IUCD)
- C. Condoms
- D. Combined oral contraceptive pills (OCP) (Correct Answer)
Explanation: ***Combined oral contraceptive pills (OCP)*** - **OCPs** have been shown to significantly **reduce the risk of ovarian cancer by 30-50%**, with the protective effect increasing with duration of use. - This protection is attributed to **suppression of ovulation**, reducing repetitive ovulation-related epithelial damage and inflammation that contributes to ovarian cancer development. - The benefit **persists for years after discontinuation** and is particularly important for individuals with a family history of ovarian cancer, as it addresses a key modifiable risk factor. - **First-line recommendation** for contraception in women with family history of ovarian cancer. *Progestin-only pills (POP)* - While **POPs** are effective contraceptives and generally safe, they do **not offer the same well-established protective effect against ovarian cancer** as combined hormonal contraceptives. - Their primary mechanism is through thickening cervical mucus and suppressing ovulation, without the estrogen component. - Evidence for ovarian cancer protection is limited compared to combined OCPs. *Copper intrauterine device (Cu IUCD)* - The **Cu IUCD** provides highly effective contraception by creating a local inflammatory response in the uterus that is spermicidal. - It is a **non-hormonal method** and therefore does not impact the risk of ovarian cancer. - Excellent contraceptive option for other indications, but not specifically protective against ovarian cancer. *Condoms* - **Condoms** primarily prevent pregnancy by blocking sperm from reaching the egg and are effective in preventing sexually transmitted infections. - They are a **barrier method** and provide no hormonal protection against ovarian cancer. - Useful for STI prevention but not relevant to ovarian cancer risk reduction.
Question 10: What are the unmet needs for contraception among women according to NFH S-3?
- A. Women after puerperium (Correct Answer)
- B. Women < 20 years
- C. Women after 1st week of delivery
- D. After illegal abortion
Explanation: ***Women after puerperium*** - **NFHS-3 specifically identified postpartum women** as having the highest unmet need for contraception, with approximately **65% unmet need in the first year after delivery** - The postpartum period is critical for **birth spacing** and preventing closely spaced pregnancies, which carry significant maternal and child health risks - Many women experience **lactational amenorrhea** and mistakenly believe they cannot conceive, leading to unintended pregnancies - **Barriers include**: lack of counseling during antenatal/postnatal visits, cultural beliefs, and limited access to immediate postpartum contraception *Women < 20 years* - While young women do face contraceptive access challenges, NFHS-3 data showed that **married women in all age groups** have unmet needs - The **postpartum period** represents a higher vulnerability window regardless of age - Adolescent contraceptive needs are important but were not the primary finding for "highest unmet need" in NFHS-3 *Women after 1st week of delivery* - This is actually part of the postpartum period, but the question refers to the broader **puerperium** (up to 6 weeks or first year postpartum) - The first week is too narrow a timeframe; NFHS-3 highlighted unmet needs throughout the **extended postpartum period** *After illegal abortion* - Women post-abortion do need contraceptive services to prevent repeat unintended pregnancies - However, NFHS-3 focused on **population-level data** for married women and their contraceptive needs across different reproductive stages - Post-abortion contraception is a specific clinical scenario, not the primary demographic identified for highest unmet need
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