FMGE 2023 — Community Medicine
25 Previous Year Questions with Answers & Explanations
The SAFE strategy given by WHO forms the mainstream of the management of Trachoma. What does the S in the acronym represent?
A study was conducted to compare MMR vaccine history in children with autism and children without autism. What kind of study is being done here?
The urban area of Delhi has 4000 people with different religions. Research is being done to study the dietary habits of the population. Which of the following techniques can be used to obtain a study sample?
How long should a couple use contraception post-vasectomy?
Which of the following is not a component of the RCH program?
A surveyor visits a household consisting of a 35-year-old man, his wife who is 6 weeks pregnant and a 3-year-old child. The man's brother along with his wife is currently visiting them for a month owing to winter vacation. What type of family would the surveyor classify the household?
What is the denominator in infant mortality rate?
Highest birth rate is seen in which stage of the demographic cycle?
During a vaccination drive, a male patient asks the presiding doctor if the recommended vaccine can lead to impotency. What type of barrier will the doctor be addressing?
A pregnant woman with a 2-year-old child gives a history of completing required antenatal vaccinations during her previous pregnancy. Which of the following would you recommend for her current pregnancy?
FMGE 2023 - Community Medicine FMGE Practice Questions and MCQs
Question 1: The SAFE strategy given by WHO forms the mainstream of the management of Trachoma. What does the S in the acronym represent?
- A. Spectacles
- B. Symbol
- C. Symptom
- D. Surgery (Correct Answer)
Explanation: ***Surgery*** - The 'S' in the WHO's SAFE strategy for Trachoma management stands for **Surgery**, which is essential for correcting **trichiasis** (in-turned eyelashes). - Surgery prevents irreversible vision loss by stopping the eyelashes from rubbing against and scarring the **cornea**. *Symptom* - Management of specific **symptoms** is generally an element of clinical treatment but does not represent a component of the comprehensive population-level intervention strategy known as SAFE. - The SAFE approach focuses on addressing the **infectious agent** (Antibiotics) and transmission factors (Facial cleanliness, Environmental improvement) for elimination. *Spectacles* - **Spectacles** are used for correcting refractive errors (like myopia or hyperopia) and are not a therapeutic measure for active **Chlamydia trachomatis** infection or trichiasis. - The goal of SAFE is elimination of the infectious cause and treatment of the blinding sequelae, not visual **refractive correction**. *Symbol* - A **symbol** is an abstract representation and does not constitute a concrete public health or clinical intervention necessary for the elimination of trachoma. - The other components (**Antibiotics**, **Facial cleanliness**, **Environmental improvement**) are tangible actions aimed at disease control and prevention.
Question 2: A study was conducted to compare MMR vaccine history in children with autism and children without autism. What kind of study is being done here?
- A. Clinical trial
- B. Cross-sectional study
- C. Cohort study
- D. Case-control study (Correct Answer)
Explanation: ***Case-control study***- This study design is **retrospective**, comparing the past frequency of an **exposure** (MMR vaccine history) between individuals with the **outcome** (autism - the cases) and individuals without the outcome (controls).- It is commonly used to investigate potential risk factors for rare outcomes, efficiently utilizing known data on disease status.*Cross-sectional study*- Exposure and disease outcome are measured **simultaneously** at a single point in time, assessing disease **prevalence**, not historical exposure differences.- It cannot establish a **temporal relationship** (i.e., whether the vaccine preceded the onset of autism) because exposure and disease are captured at the same time.*Cohort study*- Participants are selected based on their **exposure status** (e.g., vaccinated vs. non-vaccinated) and followed **prospectively** to see who develops the outcome (autism).- This design is inappropriate because the study starts with the outcome already defined (children *with* and *without* autism).*Clinical trial*- This is an **experimental study** where the investigator actively **intervenes** (e.g., assigns a treatment or vaccine) to evaluate its effect, often involving randomization.- The study described is **observational**, merely measuring the past exposure status in existing groups without any active intervention by the researcher.
Question 3: The urban area of Delhi has 4000 people with different religions. Research is being done to study the dietary habits of the population. Which of the following techniques can be used to obtain a study sample?
- A. Stratified random sampling (Correct Answer)
- B. Simple random sampling
- C. Systematic random sampling
- D. Cluster random sampling
Explanation: ***Stratified random sampling.***- This technique divides the population (Delhi area) into homogeneous subgroups (strata) based on the defining characteristic, which in this case is **religion**, to ensure proportional representation. - Since dietary habits are likely to vary significantly across different religious groups, stratification ensures that the study sample accurately reflects the **dietary heterogeneity** of the urban area. *Cluster random sampling*- **Cluster sampling** is typically used when the population is large and geographically dispersed; the basic unit sampled is a group (cluster), not the individual.- Selecting entire geographical clusters might not capture the full diversity of religious dietary habits, potentially leading to increased **sampling error**. *Simple random sampling*- **Simple random sampling** selects individuals purely randomly, irrespective of their subgroup (religious) membership.- This method risks selecting an inadequate number of individuals from smaller religious groups, thereby failing to accurately represent the **dietary practices** of the entire population. *Systematic random sampling*- **Systematic sampling** involves selecting every 'n'th member from a list and is logistically simple, but it does not account for the intrinsic heterogeneity (religion) of the population.- If the initial list is arranged in a pattern related to religious groups, this method could introduce a **hidden bias**, compromising the representativeness of the sample.
Question 4: How long should a couple use contraception post-vasectomy?
- A. 4-6 weeks
- B. 9-11 weeks
- C. 12-16 weeks (Correct Answer)
- D. 16-20 weeks
Explanation: ***12-16 weeks***- Contraception is mandatory post-vasectomy until a follow-up semen analysis confirms **azoospermia** (complete absence of sperm).- The 12-16 week period accounts for the time needed for all existing sperm distal to the occlusion site to be ejaculated and cleared from the system.*4-6 weeks*- This time frame is generally too short to ensure complete clearance of all viable **sperm** stored in the **vas deferens** and related structures.- Relying on this duration significantly increases the risk of early **contraceptive failure** before azoospermia is achieved.*9-11 weeks*- While many men achieve clearance by the 9-week mark, the standard clinical protocol usually mandates waiting until **12 weeks** for the first definitive **semen analysis**.- Stopping contraception prematurely based on an estimated time frame, rather than laboratory confirmation, increases the hazard of unwanted pregnancy.*16-20 weeks*- Although safe, this duration unnecessarily exceeds the typical time required for the successful confirmation of **azoospermia**.- If the semen analysis at 12 weeks confirms **azoospermia**, contraception can typically cease immediately, making further delay unwarranted.
Question 5: Which of the following is not a component of the RCH program?
- A. Women education and empowerment (Correct Answer)
- B. Children and new-born care
- C. Screening and treatment of STD/RTI
- D. Safe motherhood
Explanation: ***Women education and empowerment*** - This component addresses **social determinants of health** and is a broader outcome or goal of improving health indicators, not a listed, direct service pillar of the RCH (Reproductive and Child Health) program. - RCH focuses on integrated delivery of specific health services like **Safe Motherhood**, Child Health, Family Planning, and RTI/STD management. *Safe motherhood* - This is a core component, encompassing services like **Antenatal Care (ANC)**, skilled birth attendance, and **Postnatal Care (PNC)** to reduce maternal mortality and morbidity. - It emphasizes ensuring access to quality institutional delivery and emergency obstetric care (EOC). *Children and new-born care* - This is a critical component covering essential services such as **immunization**, management of neonatal and childhood illnesses (e.g., through **IMNCI**), and nutrition. - The goal is to reduce infant and child morbidity and mortality rates. *Screening and treatment of STD/RTI* - This element is integral to reproductive health, focusing on **prevention, diagnosis, and treatment** of Reproductive Tract Infections (RTI) and **Sexually Transmitted Diseases (STD)**. - It helps prevent complications like infertility and adverse pregnancy outcomes, particularly important for ensuring safe motherhood.
Question 6: A surveyor visits a household consisting of a 35-year-old man, his wife who is 6 weeks pregnant and a 3-year-old child. The man's brother along with his wife is currently visiting them for a month owing to winter vacation. What type of family would the surveyor classify the household?
- A. Third generation family
- B. Joint family
- C. Nuclear family (Correct Answer)
- D. Extended family
Explanation: ***Nuclear family***- A **nuclear family** consists of a couple and their unmarried children living together, which includes the man, his wife, and their 3-year-old child.<br>- The presence of the man's brother and his wife is **temporary** (only for a month for vacation) and does not change the classification of the permanent household unit.<br>*Joint family*- A **joint family** is created when two or more nuclear families live together (e.g., married sons living with their parents) and share possessions and usually a common kitchen.<br>- Since the brother and his wife are only temporary guests and not permanent members of the household, the definition of a joint family is not met.<br>*Extended family*- An **extended family** is a nuclear family plus one or more non-immediate relatives who live under the same roof permanently (e.g., a grandparent or an unmarried aunt/uncle).<br>- The visiting brother and his wife are not permanent residents, thus failing to meet the criteria for an extended family.<br>*Third generation family*- A **third generation family** (or three-generation family) requires members from three distinct generations to be living together (e.g., grandparents, parents, and children).<br>- This household only contains two generations (the parents and their child); the brother belongs to the same generation as the man.
Question 7: What is the denominator in infant mortality rate?
- A. 100
- B. 1000 (Correct Answer)
- C. 10,000
- D. 1,00,000
Explanation: ***Correct: 1000*** - The **Infant Mortality Rate (IMR)** is standardly calculated as the number of deaths of infants under one year of age per **1000 live births** in a given population and time period - This denominator (per **1000 live births**) is the international standard adopted by organizations like the **WHO** for standardized calculation and comparison of vital rates - IMR is expressed as deaths per 1000 live births, making it directly comparable across different populations and time periods *Incorrect: 100* - A denominator of **100** is used when expressing a rate as a **percentage**, which is not the conventional methodology for reporting IMR - Using 100 as the denominator would convert the IMR into a percentage, which is not conducive to reliable international comparisons - Standard vital statistics use 1000 as the base denominator *Incorrect: 10,000* - A denominator of **10,000** is occasionally used for reporting rates of very specific, **less common** public health events or diseases - It is **not** the traditional choice for IMR; standard indices of mortality (like Crude Death Rate, Birth Rate, IMR) rely on a base of **1000** *Incorrect: 1,00,000* - A denominator of **1,00,000** (one lakh) is primarily used when calculating incidence or prevalence of extremely **rare diseases** or specific morbidity rates in large populations - While it provides larger whole numbers, it violates the conventional rule that major vital statistics rates (like IMR) use **1000** as the denominator
Question 8: Highest birth rate is seen in which stage of the demographic cycle?
- A. Stage II
- B. Stage III
- C. Stage IV
- D. Stage I (Correct Answer)
Explanation: ***Stage I***- This stage, also known as the **High Stationary** phase, is characterized by a **high birth rate** and a high death rate.- The high birth rate is maintained due to factors like **traditional societal norms**, lack of family planning, and high infant mortality necessitating more children for survival.*Stage II*- In this stage (**Early Expanding**), the **death rate begins to fall sharply** due to improvements in sanitation, nutrition, and healthcare.- While the birth rate remains high, leading to the maximum population growth, it is typically equivalent to or slightly lower than the birth rate seen in Stage I.*Stage III*- This stage (**Late Expanding**) is defined by a **sharp decrease** in the **birth rate** due to urbanization, increased education, and adoption of family planning measures.- Both the birth rate and death rate are falling, meaning the birth rate is significantly lower than that observed in Stage I.*Stage IV*- This stage (**Low Stationary**) is characterized by both a **low birth rate** and a **low death rate**, resulting in very slow or zero population growth.- This stage reflects fully developed countries where fertility rates are close to or below the replacement level.
Question 9: During a vaccination drive, a male patient asks the presiding doctor if the recommended vaccine can lead to impotency. What type of barrier will the doctor be addressing?
- A. Physiological barrier
- B. Cultural barrier (Correct Answer)
- C. Environmental barrier
- D. Physical barrier
Explanation: ***Cultural barrier***- The patient's concern that a vaccine might cause **impotency** is deeply rooted in **cultural norms**, fears, and misinformation that link health interventions to changes in fertility or masculinity.- This type of barrier involves addressing deeply held social beliefs, values, or **rumors** within a community that create hesitancy towards medical interventions.*Physical barrier*- A physical barrier involves logistical issues that prevent access to services, such as **long distances** to the vaccination site or inadequate infrastructure.- It concerns tangible, external obstacles rather than internalized beliefs or fears about the vaccine's effect on the body.*Environmental barrier*- Environmental barriers include external factors like adverse **weather conditions**, geographical challenges, or **poor sanitation** affecting the viability or accessibility of the drive.- This does not account for the patient's specific belief about the vaccine's physiological consequences rooted in societal context.*Physiological barrier*- Physiological barriers relate to the patient's **biological state**, such as existing allergies, concurrent illness, or immunodeficiency, that might alter the body's reaction to the vaccine.- The concern about potential impotency is a fear disseminated through **social means**, not an immediate medical contraindication related to the patient's current physiology.
Question 10: A pregnant woman with a 2-year-old child gives a history of completing required antenatal vaccinations during her previous pregnancy. Which of the following would you recommend for her current pregnancy?
- A. Give a booster dose of Td
- B. Give 2 doses of TT
- C. Give a booster dose of TT (Correct Answer)
- D. Give 2 doses of Td
Explanation: ***Give a booster dose of TT*** - The woman completed her required antenatal vaccination (TT2 or more) **2 years ago** during her previous pregnancy - Since the interval is **less than 3 years**, she only requires **one booster dose of TT** to maintain protective immunity against tetanus - According to **Indian National Immunization Program** guidelines, **Tetanus Toxoid (TT)** remains the standard vaccine for antenatal immunization in India - If the last dose was given <3 years ago: **1 booster dose**; if 3-5 years: **1 dose**; if 5-10 years: **1 dose**; if >10 years: **2 doses** *Give a booster dose of Td* - While **Td (Tetanus-Diphtheria)** or Tdap is recommended in some international guidelines (WHO, US CDC) to provide dual protection against tetanus and diphtheria, it is **not the standard practice in India's national immunization program** - For **FMGE and Indian Medical PG exams**, the focus is on **TT as per Indian protocols**, not Td/Tdap *Give 2 doses of TT* - Giving **two doses** is unnecessary because she completed her vaccination series just 2 years ago, and her baseline immunity is adequate - Two doses during pregnancy are indicated only for women with **unknown or incomplete immunization status** or when >10 years have elapsed since the last dose - As per Indian guidelines, she requires only **one booster dose**, not a full series *Give 2 doses of Td* - This is incorrect because she doesn't require a **primary series** - she only needs a single booster - Additionally, **Td is not the standard antenatal vaccine in India's national program**; TT is used - Two doses of Td would be considered only if the woman had no prior tetanus immunization history