NEET-PG 2012 - Community Medicine PYQs Practice Questions

Q: Which of the following is NOT a key intervention implemented under the Reproductive and Child Health (RCH) programme?

Management of hypertension. ***Management of hypertension*** - While important for overall health, the **management of non-communicable diseases (NCDs)** like hypertension is not a primary, direct focus of the **Reproductive and Child Health (RCH) programme**. - RCH programs primarily target interventions related to women's reproductive health, safe motherhood, and child survival. *Immunization* - **Immunization** is a cornerstone intervention of the RCH program, crucial for preventing major childhood diseases and improving child survival rates. - It directly contributes to reducing **infant and child mortality** by protecting against vaccine-preventable diseases. *ORS therapy* - **Oral Rehydration Solution (ORS) therapy** is a key intervention within the RCH program aimed at reducing child mortality due to diarrheal diseases. - It is effective in treating **dehydration** caused by diarrhea, a common cause of death in young children. *Vitamin A supplementation* - **Vitamin A supplementation** is an essential RCH intervention, particularly for children, to prevent **vitamin A deficiency**. - It plays a vital role in **boosting immunity**, preventing blindness, and reducing the severity of common childhood infections. [Practice more Community Medicine PYQs on OnCourse]

Q: Who is recognized as the father of public health?

John Snow. ***John Snow*** - **John Snow** is widely recognized as the **father of epidemiology and modern public health** for his groundbreaking work in identifying the source of the 1854 Broad Street cholera outbreak in London. - He used **mapping and statistical analysis** to demonstrate that cholera was a waterborne disease, challenging the prevailing miasma theory. - His scientific approach to investigating disease patterns established the foundation for modern epidemiological methods and evidence-based public health interventions. *Edward Jenner* - **Edward Jenner** is known for his pioneering work on the **smallpox vaccine** in the late 18th century, which laid the foundation for immunology. - While his contributions were crucial for preventive medicine, his focus was on vaccination rather than broader public health and epidemiological investigation. *James Lind* - **James Lind** was a Scottish naval surgeon who conducted one of the first recorded controlled clinical trials, demonstrating that **citrus fruits cured scurvy** in the mid-18th century. - His work was significant for nutritional science and clinical trial methodology, but not for the comprehensive scope of public health and disease investigation. *Frederick Griffith* - **Frederick Griffith** was a British bacteriologist whose 1928 experiment with *Streptococcus pneumoniae* demonstrated the process of **bacterial transformation**, suggesting that genetic material could be transferred. - His work was foundational for molecular biology and genetics, not directly related to public health practices or epidemiology. [Practice more Community Medicine PYQs on OnCourse]

Q: What is the simplest and most commonly used measure of mortality?

Crude death rate. ***Crude death rate*** - This is the simplest and most commonly used measure because it reflects the **total number of deaths** in a population over a specified period, relative to the mid-period population. - Its calculation requires only the total number of deaths and the total population size, making it easily accessible and widely applicable for **general mortality comparisons**. *Case fatality rate* - This measures the **proportion of individuals diagnosed with a specific disease** who die from that disease, rather than overall mortality in a population. - It is often used to assess the **severity of a disease** and is not a general measure of mortality. *Proportional mortality rate* - This indicates the **proportion of all deaths due to a specific cause** or age group, rather than the overall death rate in the population. - It does not represent the absolute risk of dying and is influenced by the prevalence of other causes of death. *Specific death rate* - This measure calculates the death rate for a **particular subgroup** (e.g., age-specific, cause-specific, or sex-specific), making it more detailed but not the simplest or most commonly used overall measure. - While more precise for specific analyses, it requires more granular data than the crude death rate. [Practice more Community Medicine PYQs on OnCourse]

Q: Which toxin is primarily responsible for epidemic dropsy?

Sanguinarine (from bloodroot). ***Sanguinarine (from bloodroot)*** - **Sanguinarine** is an alkaloid found in *Argemone mexicana* (Mexican prickly poppy/bloodroot) seeds - Epidemic dropsy occurs when **argemone oil contaminates cooking oils** (especially mustard oil) - Causes **bilateral pitting edema**, **congestive cardiac failure**, **respiratory distress**, and **glaucoma** - Toxin damages **capillary permeability**, leading to fluid leakage and widespread edema - Major outbreaks documented in India, particularly in **Bengal (1998)** and **Delhi (1998)** *BOAA* - **BOAA** (β-N-Oxalylamino-L-alanine) is found in *Lathyrus sativus* (grass pea/khesari dal) - Causes **neurolathyrism**, characterized by **spastic paraplegia** (irreversible lower limb paralysis) - Affects the **motor neurons**, not vascular permeability - Clinically distinct from epidemic dropsy with **no edema or cardiac involvement** *Aflatoxin B1* - Produced by *Aspergillus flavus* and *Aspergillus parasiticus* fungi - Potent **hepatotoxin** and **hepatocarcinogen** - Causes **acute liver necrosis** and **hepatocellular carcinoma** - Not associated with edema or epidemic dropsy *Pyrrolizidine alkaloids* - Found in plants like *Heliotropium* and *Crotalaria* species - Cause **hepatic veno-occlusive disease** (sinusoidal obstruction syndrome) - Present with **hepatomegaly**, **ascites**, and **jaundice** - Liver pathology, not the widespread peripheral edema seen in epidemic dropsy [Practice more Community Medicine PYQs on OnCourse]

Q: In a measles outbreak, measles vaccine can be given to infants at what age range:

6-9 months. ***6-9 months*** - During a **measles outbreak**, infants as young as **6 months** can receive an early dose of the measles vaccine to provide protection. - This early vaccination is crucial in high-risk situations, even though the standard first dose is typically given at **12-15 months** of age. *2-3 months* - Administering the measles vaccine at **2-3 months** is generally avoided because of the presence of persistent **maternal antibodies**. - These antibodies can interfere with the infant's immune response to the vaccine, making it less effective. *3-5 months* - Similar to the 2-3 month range, **maternal antibodies** are still likely present and at sufficiently high levels in infants aged 3-5 months. - This interference reduces the vaccine's efficacy and the likelihood of developing a robust, lasting immune response. *2-7 months* - While this range includes the accepted 6-month age for early vaccination, infants under **6 months** still pose a challenge due to **maternal antibody interference**. - Combining these ages into a single range doesn't differentiate between the reduced efficacy in younger infants versus the permissible early vaccination at 6 months and older during an outbreak. [Practice more Community Medicine PYQs on OnCourse]

Question 1

Which of the following is NOT a key intervention implemented under the Reproductive and Child Health (RCH) programme?

Accepted Answer

Management of hypertension

Answer

Immunization

Answer

ORS therapy

Answer

Vitamin A supplementation

Question 2

Who is recognized as the father of public health?

Accepted Answer

John Snow

Answer

Edward Jenner

Answer

James Lind

Answer

Frederick Griffith

Question 3

What is the simplest and most commonly used measure of mortality?

Accepted Answer

Crude death rate

Answer

Case fatality rate

Answer

Specific death rate

Answer

Proportional mortality rate

Question 4

Which toxin is primarily responsible for epidemic dropsy?

Accepted Answer

Sanguinarine (from bloodroot)

Answer

BOAA

Answer

Aflatoxin B1

Answer

Pyrrolizidine alkaloids

Question 5

In a measles outbreak, measles vaccine can be given to infants at what age range:

Accepted Answer

6-9 months

Answer

2-3 months

Answer

3-5 months

Answer

2-7 months

Question 6

Following are examples of human "dead end" diseases except -

Accepted Answer

Bubonic plague

Answer

Hydatid disease

Answer

Japanese encephalitis

Answer

Leishmaniasis

Question 7

School health checkup is primarily managed by which entity?

Accepted Answer

PHC

Answer

CHC

Answer

District hospital

Answer

School health committee

Question 8

What is the common adulterant found in black pepper?

Accepted Answer

Dried papaya seeds

Answer

Khesari dal

Answer

Fine sand

Answer

None of the options

Question 9

What is the most commonly reported bacterial sexually transmitted infection?

Accepted Answer

Chlamydia

Answer

HSV

Answer

HIV

Answer

Syphilis

Question 10

Which of the following best describes the concept where a suspected cause precedes the observed effect?

Accepted Answer

Temporal association

Answer

Consistency of association

Answer

Strength of association

Answer

Coherence of association

NEET-PG 2012 — Community Medicine