Community Medicine
7 questionsIn the "De facto" method of census data collection, information is collected based on which of the following?
During a Health Mela organized by a medical college, the Nalgonda technique for water purification was demonstrated. Which two chemicals are used in this technique?
A 20-year-old resident of Andhra Pradesh presents with outward bending of the lower limbs and signs of osteoporosis. His diet mainly consists of rice and jowar roti. What should not be done in the management of this patient?
A study is conducted to compare the mean hemoglobin (Hb) levels between two independent groups. Which statistical test is most appropriate?
A 3-year-old child presents with difficulty in walking, bowing of legs, is underweight, and has minimal sun exposure. Which of the following government schemes addresses nutritional deficiencies in children under 6 years of age?
Under the Weekly Iron and Folic Acid Supplementation (WIFS) scheme, what is the composition of IFA tablets given to children aged 10-19 years?
Which of the following is used to measure the degree of objective and target achievement, and assess the quality of results obtained in a health program?
NEET-PG 2025 - Community Medicine NEET-PG Practice Questions and MCQs
Question 71: In the "De facto" method of census data collection, information is collected based on which of the following?
- A. Place of birth
- B. Usual place of residence
- C. Location at the time of enumeration (Correct Answer)
- D. Place of employment
Explanation: ***Location at the time of enumeration*** - The **De facto** method (or Present-in-Area method) counts people based on where they are physically present at the specific time of the census enumeration, irrespective of their usual residence. - This method is simple, avoids double counting among travelers, but may miss people who were away from their usual residence and were not enumerated elsewhere (e.g., homeless or temporary workers). *Place of birth* - Place of birth is a demographic characteristic collected during the census to understand migration patterns, but it is not the principle used for physical counting and location. - Data based on place of birth is used to analyze demographic factors like **lifetime migration** and does not determine inclusion in the count itself. *Usual place of residence* - This approach is known as the **De jure** method (or Permanent Residence method), which counts individuals based on their usual or legal place of residence. - The **De jure method** is often preferred for calculating essential demographic statistics like birth rates and death rates, as it provides a stable population base. *Place of employment* - The place of employment is an economic characteristic used to determine the **working population** and economic activity, not the method used for the population count itself. - This information helps in planning for infrastructure and labor force needs but is secondary to the primary counting methodology.
Question 72: During a Health Mela organized by a medical college, the Nalgonda technique for water purification was demonstrated. Which two chemicals are used in this technique?
- A. Alum and Gypsum
- B. Alum and Lime (Correct Answer)
- C. Alum and Charcoal
- D. Charcoal and Lime
Explanation: ***Alum and Lime*** - The **Nalgonda technique** is a simple and cost-effective method for defluoridation of water, primarily using **alum** (aluminum sulfate) and **lime** (calcium hydroxide). - The process involves mixing water with these chemicals, quick mixing, slow stirring, sedimentation, and filtration, resulting in the removal of **fluorides** through precipitation and adsorption. *Alum and Gypsum* - **Gypsum** (calcium sulfate) is not a primary component of the standard Nalgonda technique for defluoridation. - While calcium compounds are involved (lime), gypsum is more commonly encountered in soil stabilization or as a source of calcium/sulfur. *Alum and Charcoal* - While **activated charcoal** is used in water purification for removing organic contaminants, taste, and odor, it is not a required material in the specific **Nalgonda defluoridation process**. - The Nalgonda method relies on the precipitation of **aluminum hydroxyfluoride** complex using alum and lime. *Charcoal and Lime* - **Charcoal** is not the specified adsorbent agent used in this technique; its main function is flavor and odor removal, not binding fluoride effectively in this process. - The technique requires the coagulant properties of **alum** (aluminum salt) to facilitate the precipitation reaction with fluoride ions.
Question 73: A 20-year-old resident of Andhra Pradesh presents with outward bending of the lower limbs and signs of osteoporosis. His diet mainly consists of rice and jowar roti. What should not be done in the management of this patient?
- A. Provision of running surface water for drinking
- B. Fluoride supplementation (Correct Answer)
- C. Change the water source
- D. Add lime and alum to drinking water
Explanation: ***Fluoride supplementation*** - The clinical presentation (outward bending of lower limbs, osteoporosis) in an endemic area like Andhra Pradesh strongly suggests **Skeletal Fluorosis**, likely from high fluoride levels in drinking water. - **Fluoride supplementation** would exacerbate the condition by increasing the total fluoride body burden, leading to worsening of the bone deformities and pain. *Provision of running surface water for drinking* - This is a recommended management step as **surface water** typically has much lower concentrations of **fluoride** compared to deep borehole water, thereby reducing intake. - This action directly targets the removal of the primary source of excess fluoride ingestion. *Change the water source* - This is a key public health measure to reduce fluoride exposure by replacing the current high-fluoride source with a source known to have safe levels (less than 1.5 ppm, ideally less than 1.0 ppm). - Reducing the long-term consumption of high-fluoride water is essential to halt the progression of **skeletal fluorosis**. *Add lime and alum to drinking water* - Adding **lime (calcium oxide)** and **alum (aluminum sulfate)** is a recognized defluoridation technique (especially the Nalgonda technique). - This method effectively precipitates and removes excess **fluoride** from the water, making it a viable public health intervention.
Question 74: A study is conducted to compare the mean hemoglobin (Hb) levels between two independent groups. Which statistical test is most appropriate?
- A. Paired t-test
- B. Chi-square test
- C. Unpaired t-test (Correct Answer)
- D. ANOVA
Explanation: ***Unpaired t-test*** - This test is specifically used to compare the **means** of a continuous outcome variable (like hemoglobin level) between **two independent, unrelated groups**. - It is based on the assumption that the data is normally distributed and variances are equal (though modifications exist if variances are unequal, known as Welch's t-test). *Paired t-test* - The paired t-test is used when the data comes from **dependent** or **related groups**, such as measuring the same individuals before and after an intervention (pre-post study). - Since the question specifies two **independent** groups, this test is incorrect. *Chi-square test* - This test is used to analyze the association or difference between **two or more categorical variables** (e.g., comparing proportions or frequencies in nominal data). - It is unsuitable for comparing the **mean** of a **continuous variable** like Hb levels. *ANOVA* - Analysis of Variance (ANOVA) is used to compare the **means** of a continuous variable among **three or more independent groups**. - Since the study involves only **two groups**, the unpaired t-test is the simpler and more conventional choice, although ANOVA yields the same result when reduced to two groups.
Question 75: A 3-year-old child presents with difficulty in walking, bowing of legs, is underweight, and has minimal sun exposure. Which of the following government schemes addresses nutritional deficiencies in children under 6 years of age?
- A. Mid-Day Meal Scheme
- B. Integrated Child Development Services (ICDS) (Correct Answer)
- C. Anemia Mukt Bharat
- D. National Nutritional Deficiency Control Programme
Explanation: ***Integrated Child Development Services (ICDS)*** - ICDS is a comprehensive scheme launched in 1975 to address nutritional and health needs of children **under 6 years** and pregnant/lactating women - Provides a package of services including **supplementary nutrition, health check-ups, immunization, and non-formal preschool education** - Directly addresses nutritional status of children in this age group through Anganwadi centers - The clinical scenario (rickets with malnutrition) represents the target population for ICDS interventions *Mid-Day Meal Scheme* - Targets children in **primary and upper primary schools (age 6-14 years)**, not children under 6 - Main objectives are to enhance enrollment, retention, and school attendance while improving nutrition - Does not cover the 3-year-old child in the scenario *Anemia Mukt Bharat* - Specific strategy focused on controlling and eliminating **iron deficiency anemia** across different population groups - Not a comprehensive scheme for all nutritional deficiencies in children under 6 - Utilizes targeted interventions like iron and folic acid supplementation (WIFS programs) *National Nutritional Deficiency Control Programme* - This is a descriptive term, not an official single program name - India has various disease-specific control programs (e.g., National Iodine Deficiency Disorder Control Programme), but no overarching program with this exact name - ICDS remains the primary umbrella scheme for nutritional deficiencies in children under 6
Question 76: Under the Weekly Iron and Folic Acid Supplementation (WIFS) scheme, what is the composition of IFA tablets given to children aged 10-19 years?
- A. 100 mg elemental iron + 100 µg folic acid
- B. 60 mg elemental iron + 500 µg folic acid (Correct Answer)
- C. 60 mg elemental iron + 100 µg folic acid
- D. 100 mg elemental iron + 500 µg folic acid
Explanation: ***Correct: 60 mg elemental iron + 500 µg folic acid*** - This tablet composition is specifically designated for the **Weekly Iron and Folic Acid Supplementation (WIFS)** program, targeting schoolchildren and adolescents (10-19 years). - The tablets provided for this age group are characteristically **blue** in color. - Given **once weekly** as prophylactic supplementation to prevent anemia in this vulnerable age group. *Incorrect: 60 mg elemental iron + 100 µg folic acid* - This composition (often a pink tablet) is typically used for the treatment of **anemia in children** aged 6 months to 5 years under the National Iron Plus Initiative (NIPI). - The dose of **folic acid (100 µg)** is insufficient for the adolescent WIFS scheme. *Incorrect: 100 mg elemental iron + 500 µg folic acid* - This is the standard dose of IFA recommended for routine supplementation in **pregnant women** starting from the second trimester. - The **red tablet** contains both higher elemental iron (**100 mg**) and appropriate folic acid (500 µg) for pregnancy needs. - The iron content is significantly higher than the **60 mg** prescribed for weekly adolescent prophylaxis. *Incorrect: 100 mg elemental iron + 100 µg folic acid* - This particular combination does not align with the standardized dosage protocols under the NIPI/WIFS guidelines. - Neither the iron content (**100 mg** - too high) nor the folic acid content (**100 µg** - too low) matches the adolescent WIFS requirements.
Question 77: Which of the following is used to measure the degree of objective and target achievement, and assess the quality of results obtained in a health program?
- A. Monitoring
- B. Surveillance
- C. Evaluation (Correct Answer)
- D. Planning
Explanation: ***Evaluation*** - **Evaluation** is the specific process used to measure the degree of **objective and target achievement** and assess the **quality and impact** of results obtained in a health program. - It determines the overall **worth and effectiveness** of the program and typically occurs at the end or specific phases to inform future policy. - Evaluation answers: *"Did we achieve what we set out to do, and what was the quality of those results?"* *Monitoring* - **Monitoring** is the periodic oversight of ongoing activities to check if they are proceeding according to schedule and resource utilization (efficiency). - It tracks the **input, process, and output** (activities completed) rather than assessing the final effectiveness or the quality of results (program impact). - Monitoring answers: *"Are activities happening as planned?"* *Surveillance* - **Surveillance** is the continuous, systematic collection and analysis of data, primarily used for **tracking disease trends** and providing early warning. - Its focus is on monitoring health events (e.g., incidence/prevalence), not assessing overall program performance against predefined final objectives. - Surveillance answers: *"What is happening in terms of disease occurrence?"* *Planning* - **Planning** is the initial stage involving defining goals, establishing strategies, and allocating resources, occurring *before* program implementation. - It sets the foundation but does not involve measuring the achievement of targets after the program has run. - Planning answers: *"What do we want to achieve and how?"*
ENT
1 questionsA 12-year-old male with a history of recurrent epistaxis presents with nasal obstruction for the past 1 year. On examination the presence of nasal mass and investigation shows bowing of the posterior wall of maxillary sinus. What is the probable diagnosis?
NEET-PG 2025 - ENT NEET-PG Practice Questions and MCQs
Question 71: A 12-year-old male with a history of recurrent epistaxis presents with nasal obstruction for the past 1 year. On examination the presence of nasal mass and investigation shows bowing of the posterior wall of maxillary sinus. What is the probable diagnosis?
- A. Nasopharyngeal angiofibroma (Correct Answer)
- B. Rhinosporidiosis
- C. Antrochoanal polyp
- D. Rhinoscleroma
Explanation: ***Nasopharyngeal angiofibroma*** - This diagnosis is strongly suggested by the classic triad of **adolescent male** (12 years old), **recurrent epistaxis**, and **nasal obstruction** - the typical presentation of this benign but locally aggressive tumor. - The **Holman-Miller sign** (bowing of the posterior wall of maxillary sinus) is pathognomonic for nasopharyngeal angiofibroma, indicating aggressive expansion and bony remodeling. *Rhinosporidiosis* - This condition presents as **friable, strawberry-like polyps** that may bleed, but doesn't cause the severe, recurrent epistaxis seen in this case. - It does not cause aggressive **bony remodeling** or the characteristic Holman-Miller sign seen on imaging. *Antrochoanal polyp* - While it can cause **unilateral nasal obstruction**, it rarely presents with severe, recurrent **epistaxis** as the predominant feature. - This benign polyp does not cause the aggressive **bony expansion** and Holman-Miller sign characteristic of angiofibroma. *Rhinoscleroma* - This chronic granulomatous infection caused by **Klebsiella rhinoscleromatis** typically presents with firm, sclerotic lesions and **crusting**. - It rarely causes the prominent, recurrent **epistaxis** or the destructive bony changes (Holman-Miller sign) seen in this patient.
Forensic Medicine
2 questionsWhat is the Zasko phenomenon?
The Protection of Children from Sexual Offences (POCSO) Act covers which of the following groups?
NEET-PG 2025 - Forensic Medicine NEET-PG Practice Questions and MCQs
Question 71: What is the Zasko phenomenon?
- A. Tendon reflex occurring after death (Correct Answer)
- B. Clotting of blood after death
- C. Seeping of blood through wounds around the time of death
- D. Gaping of wound along skin tension lines
Explanation: ***Tendon reflex occurring after death*** - The Zasko phenomenon refers to the finding where deep **tendon reflexes**, such as the patellar reflex, can be elicited for a short period (usually up to 1-2 hours) **after somatic death**. - This reflex is considered an **early post-mortem phenomenon** indicating residual excitability of the muscle and nervous system components. *Seeping of blood through wounds around the time of death* - This finding is related to **bleeding** or **haemorrhage** that occurred either immediately before or around the time of death, sometimes termed perimortem. - It is generally assessed to determine if the trauma occurred during life (**vital reaction**) or after death, and is not a neurological reflex. *Clotting of blood after death* - This refers to the formation of post-mortem clots within the blood vessels, resulting in the characteristic **current jelly** and **chicken fat** clots. - It is a widespread physiological change distinct from the specific local reflex defined by the Zasko phenomenon. *Gaping of wound along skin tension lines* - This phenomenon describes the tendency of wounds to gape when they run **perpendicular** to the **Langer's lines** (skin tension lines). - It is used in forensic pathology to assess the nature and direction of incised wounds, independent of post-mortem reflexes.
Question 72: The Protection of Children from Sexual Offences (POCSO) Act covers which of the following groups?
- A. Girls below 18 years
- B. Girls below 16 years
- C. All children below 18 years (Correct Answer)
- D. All children below 16 years
Explanation: ***All children below 18 years*** - The POCSO Act, 2012, defines a **child** as any person below the age of **18 years**, regardless of gender. - The primary goal of the Act is to protect all children from various forms of **sexual abuse** and **exploitation**. *Girls below 18 years* - This option is partially correct but **incomplete**, as the Act explicitly covers both male and female children below 18. - Defining the scope by gender would violate the fundamental principle of **gender neutrality** in the Act. *Girls below 16 years* - This definition is incorrect as it excludes girls between 16 and 18 years, who are legally considered **minors** under the Act. - The Act's definition of a child is uniformly set at **18 years**, not 16. *All children below 16 years* - This is an incorrect definition as it excludes all children (both boys and girls) between the ages of 16 and 18. - Setting the age limit at 16 years would contradict the definition of a minor used in the Act, which aligns with the **UN Convention on the Rights of the Child** (age 18).