FMGE 2019 — Community Medicine
19 Previous Year Questions with Answers & Explanations
At what altitude is kala azar unlikely to occur?
In a disease with 100% mortality, what is the relationship between incidence and prevalence?
Which of the following is a direct health impact of climate change?
NITI Aayog stands for:
The primary function of NIH (National Institutes of Health) is
Yellow fever vaccine is valid for?
Contaminated tubing and catheters will be disposed in which bag according to biomedical waste management?
What is a target couple?
Main focus of UNICEF is on?
Which of the following is not a measure of dispersion?
FMGE 2019 - Community Medicine FMGE Practice Questions and MCQs
Question 1: At what altitude is kala azar unlikely to occur?
- A. 400 meters
- B. 500 meters
- C. 600 meters (Correct Answer)
- D. 200 meters
Explanation: ***600 meters*** - Kala-azar, or **visceral leishmaniasis**, is primarily found in **low-lying areas** and is rarely reported at altitudes above 600 meters due to the specific ecological requirements of its **sand fly vector**. - The **Phlebotomus argentipes sand fly**, the main vector in the Indian subcontinent, prefers warm, humid climates and **lower altitudes**. *400 meters* - This altitude is within the **typical endemic range** for kala-azar, especially in regions like the Indian subcontinent. - The environmental conditions at 400 meters are generally conducive for the **survival and breeding** of the sand fly vector. *500 meters* - Similar to 400 meters, 500 meters is still considered within the **favorable altitude range** for kala-azar transmission. - The **sand fly vector** can thrive in the climate often found at this elevation. *200 meters* - This altitude represents a **highly endemic zone** for kala-azar, as it provides optimal conditions for the sand fly vector. - Lower altitudes are typically associated with increased **humidity and warmth**, favoring vector density and parasite transmission.
Question 2: In a disease with 100% mortality, what is the relationship between incidence and prevalence?
- A. Prevalence is less than incidence (P < I) (Correct Answer)
- B. Prevalence equals incidence (P = I)
- C. There is no relationship between prevalence and incidence
- D. Prevalence is greater than incidence (P > I)
Explanation: ***Prevalence is less than incidence (P < I)*** - In a disease with 100% mortality, all affected individuals will eventually die, meaning their contribution to the **prevalent pool is temporary** or non-existent in the long run. - While new cases (incidence) continue to arise, the rapid removal of cases due to death prevents the buildup of prevalent cases, thus keeping prevalence lower than incidence. *Prevalence equals incidence (P = I)* - This scenario would imply that every new case immediately disappears or that the disease has no duration, which contradicts the concept of **disease progression** and death. - **Prevalence** is influenced by both the incidence rate and the duration of the disease; if duration is effectively zero due to immediate death, the relationship still leans towards prevalence being lower. *There is no relationship between prevalence and incidence* - This statement is incorrect as **incidence and prevalence are fundamentally linked**. Prevalence is a function of incidence and disease duration. - Changes in incidence directly affect **prevalence**, although the extent of this effect is modulated by factors like disease duration, recovery, or mortality. *Prevalence is greater than incidence (P > I)* - Prevalence being greater than incidence typically occurs in **chronic diseases** where individuals live with the condition for a long time, allowing prevalent cases to accumulate. - With **100% mortality**, individuals do not survive long enough to contribute significantly to the prevalent pool, making it impossible for prevalence to exceed incidence in this context.
Question 3: Which of the following is a direct health impact of climate change?
- A. Heat-related illnesses (Correct Answer)
- B. Food insecurity and malnutrition
- C. Injuries from extreme weather events
- D. Increased vector-borne diseases
Explanation: ***Heat-related illnesses*** - Heat-related illnesses such as **heat stroke, heat exhaustion, and heat cramps** are direct health impacts of climate change resulting from increased frequency and intensity of **heat waves**. - Rising global temperatures directly increase the risk of **hyperthermia**, particularly among vulnerable populations including the elderly, children, outdoor workers, and those with chronic diseases. - This is considered a **primary direct health impact** as it results immediately from temperature changes without intermediate pathways. *Increased vector-borne diseases* - While vector-borne diseases (malaria, dengue, chikungunya) do increase with climate change due to expanded geographic range and breeding seasons of vectors, this is considered an **indirect health impact**. - Climate change affects vector ecology through temperature, rainfall, and humidity changes, which then influences disease transmission - involving an intermediate biological pathway. *Food insecurity and malnutrition* - Food insecurity and malnutrition are significant health consequences of climate change but are classified as **indirect impacts**. - They result from climate change effects on **agricultural productivity**, crop yields, food distribution systems, and water availability - multiple intermediate pathways exist between climate change and the health outcome. *Injuries from extreme weather events* - While injuries and deaths from extreme weather events (floods, cyclones, droughts) are important health impacts of climate change, they are often categorized differently from heat-related illnesses. - Heat-related illnesses represent the most **direct physiological response** to the primary manifestation of climate change (rising temperatures), making it the best answer for a "direct" health impact.
Question 4: NITI Aayog stands for:
- A. Newer Initiative transforming India
- B. Nutritional institute for transforming India
- C. Nutrition Intake to India
- D. National Institution for Transforming India (Correct Answer)
Explanation: ***National Institute for Transforming India*** - NITI Aayog is the abbreviation for **National Institution for Transforming India**, a policy think tank of the Indian government. - It replaced the **Planning Commission** in 2015, aiming to foster cooperative federalism and bottom-up planning. *Newer Initiative transforming India* - This option is **descriptive** of NITI Aayog's function but not its official full form. - While NITI Aayog is indeed a newer initiative for transformation, this is not the **accurate expansion** of the acronym. *Nutritional institute for transforming India* - This option incorrectly specifies "Nutritional institute," limiting the scope of NITI Aayog's work. - NITI Aayog's mandate is **broader** than just nutrition; it covers various socio-economic development aspects. *Nutrition Intake to India* - This option is syntactically awkward and **does not align** with the established full form of NITI Aayog. - It also drastically **misrepresents** the organization's overarching purpose and functions.
Question 5: The primary function of NIH (National Institutes of Health) is
- A. Medical research (Correct Answer)
- B. Public health policy
- C. Clinical trials
- D. Disease surveillance
Explanation: ***Medical research*** - The **National Institutes of Health (NIH)** is the primary biomedical research agency of the United States, comprising 27 institutes and centers - Its stated mission is to seek fundamental knowledge about living systems and apply that knowledge to **enhance health, lengthen life, and reduce illness and disability** - The NIH conducts and funds **medical research** across virtually all areas of medicine and public health, making this its core primary function - It is the world's largest public funder of biomedical research, with a budget primarily dedicated to research grants and intramural research programs *Disease surveillance* - Disease surveillance is primarily the responsibility of the **CDC (Centers for Disease Control and Prevention)**, not the NIH - While NIH research may inform surveillance strategies, **monitoring and tracking disease patterns** is not the NIH's primary organizational function - The NIH focuses on understanding disease mechanisms and developing interventions through research *Public health policy* - The NIH provides **evidence-based research** that informs public health policy but does not primarily create or enforce policy - Policy-making authority rests with the **Department of Health and Human Services (HHS)** and other regulatory agencies like the FDA - The NIH's role is to generate the scientific knowledge base that guides policy decisions *Clinical trials* - The NIH conducts and funds extensive **clinical trials** through its Clinical Center and grant mechanisms - However, clinical trials are a **methodology of medical research**, not a separate primary function - Clinical trials serve the broader mission of medical research by testing hypotheses and interventions developed through basic and translational research
Question 6: Yellow fever vaccine is valid for?
- A. 20 years
- B. 5 years
- C. Lifelong (Correct Answer)
- D. 10 years
Explanation: ***Life long*** - As per the **International Health Regulations (IHR) 2005**, a single dose of yellow fever vaccine provides **lifelong protection**, eliminating the need for booster doses. - This change in policy reflects robust evidence demonstrating sustained immunity beyond 10 years, making previous 10-year validity periods obsolete. *20 years* - While reflecting a prolonged period of protection, **20 years** is not the officially recognized validity period. - The latest WHO recommendations state **lifelong validity**, superseding previous duration estimates. *5 years* - A 5-year validity period was used historically but is now outdated. - **Evidence has shown long-term immunity**, supporting a much longer, effectively lifelong, protection. *10 years* - The **10-year validity** was the standard for many years, necessitating booster doses for travelers. - This has been updated to **lifelong validity** based on conclusive data proving persistent protective immunity.
Question 7: Contaminated tubing and catheters will be disposed in which bag according to biomedical waste management?
- A. Yellow
- B. Blue
- C. White
- D. Red (Correct Answer)
Explanation: ***Red Container*** - The **red bag** is designated for **contaminated recyclable waste** including tubing, catheters, intravenous sets, and soiled plastic items. - This waste is highly infectious and undergoes **autoclaving** or **microwaving** to disinfect it before recycling. *Yellow Container* - The **yellow bag** is used for **highly infectious waste** such as human anatomical waste, medical dressings, and microbiological waste. - This waste is typically **incinerated** or undergoes deep burial. *Blue Container* - The **blue/white puncture-proof container** is used for **sharp objects** like needles, syringes with fixed needles, and scalpel blades. - This waste is often **autoclaved** and then shredded or vitrified to prevent reuse and injury. *White Container* - In some biomedical waste management systems, a **white translucent container** is used for **glassware** that is contaminated with blood or body fluids, such as broken glass ampoules or vials. - The specific color codes can vary slightly between regions, but the red bag is consistently for contaminated plastic/tubing.
Question 8: What is a target couple?
- A. Couple using contraception
- B. Couple with 3 children
- C. Couple that is eligible for practicing family planning
- D. Currently married couple where the wife is in reproductive age (15-49 years) (Correct Answer)
Explanation: ***Currently married couple where the wife is in reproductive age (15-49 years)*** - This is the **official definition** of a target couple according to the **National Family Welfare Programme** of India. - A target couple is specifically defined as a **currently married couple** in which the wife is in the **reproductive age group (15-49 years)**. - This operational definition is used for **planning, monitoring, and evaluation** of family planning services in India. - It forms the basis for calculating **couple protection rate (CPR)** and other family planning indicators. *Couple that is eligible for practicing family planning* - While this is conceptually broad and inclusive, it is **not the standard operational definition** used in Indian public health programs. - The official definition is more specific and includes marital status and age criteria for program planning purposes. *Couple using contraception* - This describes a **protected couple** or **couple currently using contraception**, not a target couple. - Target couples include both those using and not using contraception, as they represent the denominator for family planning coverage. *Couple with 3 children* - The number of children is **not a defining criterion** for a target couple. - Target couples are defined by marital status and reproductive age, regardless of parity (number of children).
Question 9: Main focus of UNICEF is on?
- A. Child health (Correct Answer)
- B. Social health
- C. Mental health
- D. Nutritional health
Explanation: ***Child health*** - UNICEF's primary mission focuses on advocating for the protection of children's rights, helping to meet their basic needs, and expanding their opportunities to reach their full potential. - This encompasses various aspects of child welfare, with **child health** being a fundamental and overarching priority. *Social health* - While UNICEF's work indirectly contributes to **social health** by fostering community well-being, its direct and explicit focus is not primarily on the broader concept of social health. - Social health is a very broad term that encompasses many aspects not directly and exclusively dealt with by UNICEF. *Mental health* - **Child mental health** is an increasingly recognized area of focus for UNICEF, but it falls under the broader umbrella of child health and well-being, rather than being its sole or main focus. - While important, mental health is a component of overall child health, not the singular main focus. *Nutritional health* - **Nutritional health** is a critical component of child health and a significant area of intervention for UNICEF. - However, it represents one vital aspect within the comprehensive scope of "child health," not the exclusive main focus.
Question 10: Which of the following is not a measure of dispersion?
- A. Mean (Correct Answer)
- B. Range
- C. Variance
- D. Standard error
Explanation: ***Mean*** - The **mean** is a measure of **central tendency**, representing the average value of a dataset. - It describes where the center of the data lies, not how spread out the data points are. *Range* - The **range** is a measure of **dispersion** that indicates the difference between the **maximum** and **minimum** values in a dataset. - It quantifies the overall spread of the data from its lowest to highest points. *Variance* - **Variance** is a measure of **dispersion** that quantifies the **average squared deviation** of each data point from the mean. - It provides insight into how much the individual data points in a distribution deviate from the central tendency. *Standard error* - The **standard error** measures the **precision and sampling variability** of a sample statistic (e.g., sample mean) as an estimate of the population parameter. - While it relates to variability, it specifically quantifies how much a sample statistic varies across different samples, rather than measuring the dispersion of individual observations within a dataset. - In the context of this question, it is considered a measure related to dispersion, though technically it measures sampling variability.