UPSC-CMS 2017 - Community Medicine Practice Questions

Q: Retrospective cohort studies have the following features EXCEPT:

Generally more expensive than prospective studies. ***Generally more expensive than prospective studies*** - Retrospective cohort studies are typically **less expensive** than prospective studies because they utilize existing data, thus avoiding the costs associated with new data collection and long-term follow-up. - The primary expenses in retrospective studies often involve data retrieval and analysis, which are generally lower compared to the extensive resources needed for prospective data acquisition. *Investigator goes back in time to select study groups* - This is a hallmark feature of **retrospective cohort studies**, where researchers define study groups (exposed and unexposed) based on past exposures. - Data collection then proceeds by looking forward from the exposure to identify health outcomes that have already occurred. *Outcomes have occurred before the start of the study* - In a **retrospective cohort study**, both the exposure and the **outcomes of interest** have already taken place before the study officially begins. - Researchers identify existing records to link past exposures to these pre-existing outcomes. *Results are obtained more quickly* - Because all exposures and outcomes have already occurred and data is often readily available, **retrospective studies** can generate results much faster than prospective studies. - They do not require waiting for events to unfold in real-time, which significantly reduces the duration of the research process.

Q: What is the correct sequence of the following levels of prevention? 1. Specific protection 2. Early diagnosis and prompt treatment 3. Disability limitation and rehabilitation 4. Health promotion Select the correct sequence from the code given below:

4, 1, 2, 3. ***4, 1, 2, 3*** - The correct sequence of prevention levels starts with **health promotion** (primary prevention), followed by **specific protection** (also primary prevention, but more targeted). - It then moves to **early diagnosis and prompt treatment** (secondary prevention), and finally to **disability limitation and rehabilitation** (tertiary prevention). *3, 4, 1, 2* - This sequence incorrectly places **disability limitation and rehabilitation** (tertiary prevention) at the beginning, which occurs much later in the disease process. - It also scatters the primary prevention components (health promotion and specific protection) rather than grouping them appropriately at the start. *2, 3, 4, 1* - This sequence begins with **early diagnosis and prompt treatment** (secondary prevention), which is not the initial step in the comprehensive prevention model. - It also places **health promotion** and **specific protection** later than they should be, distorting the chronological progression of preventive actions. *1, 2, 3, 4* - This sequence begins with **specific protection**, which is a part of primary prevention but typically follows broader **health promotion** efforts. - It also places **health promotion** (4) as the last step, which is incorrect as it represents the fundamental and initial level of prevention.

Q: Which of the following items are among the uses of epidemiology?

All of these. ***All of these*** - Epidemiology encompasses various applications, and all three listed items are well-established uses of this discipline in public health practice. - Each of the following represents a distinct but complementary application of epidemiological principles. **To study historically the rise and fall of diseases:** - This is a fundamental application of epidemiology, as **epidemiological studies** track disease prevalence and incidence over time to understand their natural history and the impact of interventions. - Historical data helps in predicting future trends, understanding the **etiology** of diseases, and evaluating the effectiveness of public health measures. - This temporal perspective is essential for identifying emerging and re-emerging diseases. **To identify syndromes:** - Epidemiology plays a crucial role in defining and characterizing **syndromes** by observing patterns of symptoms, signs, and associated factors within a population. - This involves statistical analysis to link sets of clinical features to a common underlying condition or exposure. - Classic examples include identifying AIDS as a syndrome and recognizing new clinical entities through pattern recognition. **To arrive at community diagnosis:** - **Community diagnosis** involves assessing the health status of a community, identifying health problems, and determining their causes and risk factors using epidemiological methods. - This process is essential for planning and implementing effective public health interventions and allocating resources appropriately. - It forms the foundation for evidence-based public health planning and policy development.

Q: The maternal and child health care indicator that best reflects the extent of pregnancy wastage as well as the quantity and quality of health care available to the mother and newborn is:

Perinatal Mortality Rate. ***Perinatal Mortality Rate*** - This rate includes both **stillbirths** (fetal deaths after 28 weeks of gestation) and **early neonatal deaths** (deaths within the first seven days of life), encompassing late pregnancy and the immediate post-delivery period. - It reflects the quality of **antenatal care**, **obstetric care**, and **neonatal care**, thus indicating both pregnancy wastage and healthcare quality for mother and newborn. *Infant Mortality Rate* - The **Infant Mortality Rate** measures deaths of children under one year of age, which includes perinatal deaths but also covers a much broader period influenced by factors beyond immediate pregnancy and birth care. - While an important indicator of child health, it is less specific for evaluating issues directly related to **pregnancy wastage** and **delivery care**. *Maternal Mortality Rate* - This rate focuses solely on deaths of women during pregnancy or within 42 days of termination of pregnancy, from any cause related to or aggravated by the pregnancy or its management. - It directly reflects the safety of **maternity care** for the mother but does not include outcomes for the newborn or broader pregnancy wastage like stillbirths. *Stillbirth Rate* - The **Stillbirth Rate** specifically measures fetal deaths after 28 weeks (or 20 weeks in some definitions), providing an indicator of deaths in late pregnancy. - While it reflects a significant portion of pregnancy wastage, it does not account for **neonatal deaths** or the quality of care for the live-born infant.

Q: To control Mansonia mosquitoes, the most effective method is:

Removal of water plants. ***Correct: Removal of water plants*** - **Mansonia** mosquitoes have a unique biological adaptation where their **larvae and pupae attach to the roots and stems of aquatic plants** (like *Pistia*, *Eichhornia*, water lettuce) to obtain oxygen through a specialized respiratory siphon - **Removal of aquatic vegetation** is the **most effective control method** because it eliminates the attachment sites essential for larval and pupal respiration - Without host plants, the larvae and pupae cannot obtain oxygen and die, making this the **gold standard** for Mansonia control - This method provides long-term control by eliminating the breeding habitat *Incorrect: Larvicidal insecticides* - While larvicidal insecticides are effective for many mosquito species, they are **less effective for Mansonia** mosquitoes - Since Mansonia larvae remain submerged and attached to plant roots (not coming to the surface for air), conventional larvicides have difficulty reaching them - The larvae's unique oxygen-obtaining mechanism makes them relatively resistant to surface-applied larvicides *Incorrect: Avoidance of water collections* - **Mansonia** mosquitoes breed in large, permanent water bodies with extensive aquatic vegetation (ponds, marshes, swamps) - These are natural habitats that cannot be easily eliminated - Unlike container-breeding mosquitoes (e.g., *Aedes*), avoidance of water collections is impractical and ineffective for Mansonia control *Incorrect: Oiling of water* - **Oiling the water surface** creates a film that prevents mosquito larvae from accessing atmospheric oxygen at the surface - This method works for species like **Anopheles** and **Culex** whose larvae breathe from the water surface - It is **completely ineffective against Mansonia** because their larvae obtain oxygen directly from **aquatic plant roots beneath the surface**, not from atmospheric air

Q: What is the fertility indicator that gives the approximate magnitude of completed family size?

Total Fertility Rate. ***Total Fertility Rate*** - The **Total Fertility Rate (TFR)** estimates the average number of children a woman would have over her lifetime if she were to experience current age-specific fertility rates. - It is often considered a good indicator of the **completed family size** as it projects future fertility based on current patterns. *General Fertility Rate* - The **General Fertility Rate (GFR)** measures the number of live births per 1,000 women of childbearing age (typically 15-49 years) in a given year. - It does not account for the **age structure** within the childbearing population or project completed family size. *Age Specific Fertility Rate* - The **Age Specific Fertility Rate (ASFR)** is the number of births to women in a specific age group per 1,000 women in that age group. - While essential for calculating TFR, ASFR alone describes fertility within a **narrow age band**, not overall completed family size. *Gross Reproduction Rate* - The **Gross Reproduction Rate (GRR)** is similar to the TFR but measures the average number of *daughters* a woman would have. - It is used to estimate the extent to which a generation of women is **replacing itself**, rather than the total number of children.

Q: For a child aged four years, an Anganwadi Worker detects that the weight is lower than expected. What should the Anganwadi Worker do first regarding the malnutrition detected in the child?

Give nutritional counselling to the mother. ***Give nutritional counselling to the mother*** - As an Anganwadi Worker, the **first and most immediate action** for detected malnutrition in a four-year-old child is to provide **nutritional counseling** to the mother. This empowers the caregiver with knowledge and practical advice on improving the child's diet and feeding practices at home. - Counseling can address issues such as **appropriate food choices**, frequency of feeding, overcoming feeding difficulties, and hygiene, which are often at the root of mild to moderate malnutrition. *Refer the child to the nearby Health Centre* - Referring to a health center is essential if the malnutrition is **severe** or if there are **associated medical complications** requiring clinical evaluation and treatment. - However, for initial detection, especially in cases that might be mild, basic nutritional guidance from an Anganwadi Worker is the primary step before escalating to a medical referral. *Start fortnightly deworming* - Deworming is an important public health measure to reduce parasitic load, which can contribute to malnutrition, but it is not the **first and most direct intervention** for managing detected low weight. - While beneficial as part of a comprehensive strategy, deworming alone does not address immediate dietary deficiencies or feeding practices contributing to low weight. *Refer the child a nearby nutritional rehabilitation centre* - Referral to a nutritional rehabilitation center (NRC) is typically reserved for children with **severe acute malnutrition (SAM)** who require intensive, structured feeding and medical management. - For a child whose weight is simply detected as "lower than expected" (which could be moderate or even mild malnutrition), an NRC is usually not the initial or immediate course of action.

Q: Which of the following anthropometrical measurements is/are carried out to assess the growth of children under five years of age? 1. Weight measurement 2. Height measurement 3. Mid upper arm circumference Select the correct answer using the code given below:

1, 2 and 3. ***1, 2 and 3*** - **Weight, height, and mid-upper arm circumference (MUAC)** are all standard anthropometric measurements used to assess the growth and nutritional status of children under five years of age. - These measurements help identify **underweight, stunted growth, and acute malnutrition** (wasting) in young children. *1 and 2 only* - While **weight and height** are fundamental for growth assessment, excluding MUAC misses a crucial measure for identifying **acute malnutrition**, particularly in community settings. - MUAC is especially valuable for quick screening for **severe acute malnutrition (SAM)**. *1 only* - Measuring only **weight** provides information about overall nutritional status but doesn't differentiate between **wasting (low weight-for-height)** and **stunting (low height-for-age)**, which are distinct growth problems. - **Height** is essential to understand cumulative growth and identify stunting. *2 and 3 only* - Omitting **weight measurement** would significantly hinder a comprehensive assessment of a child's growth and nutritional status. - **Weight** is a primary indicator for tracking growth velocity and identifying both underweight and overweight conditions.

Q: Which of the following statements is/are correct regarding Essential Obstetric Care under the Reproductive, Maternal, Newborn and Child Health care Programme? 1. Early registration of pregnancy 2. Provision of first referral units 3. Provision of safe delivery practices 4. Provision of at least four postnatal checkups Select the correct answer using the code given below:

1, 2, 3 and 4. ***1, 2, 3 and 4*** * Essential Obstetric Care under **RMNCH+A (Reproductive, Maternal, Newborn, Child and Adolescent Health)** aims to reduce maternal and neonatal mortality and morbidity. * This comprehensive care package includes early registration of pregnancy, provision of first referral units for complicated cases, promoting safe delivery practices, and ensuring adequate postnatal checkups. *2 and 3 only* * While provision of **first referral units** and **safe delivery practices** are crucial components of Essential Obstetric Care, stating "only" these two is incorrect as other aspects are also fundamental. * Early pregnancy registration and sufficient postnatal care are equally vital for ensuring a healthy mother and child. *1 and 3 only* * **Early registration of pregnancy** and **safe delivery practices** are indeed cornerstones of quality maternal care, but excluding other essential elements like first referral units and postnatal checkups makes this option incomplete. * A holistic approach to essential obstetric care requires all four mentioned components. *1 and 2 only* * **Early registration of pregnancy** and the establishment of **first referral units** are important, but this option incorrectly omits crucial aspects such as safe delivery practices and postnatal care. * Failing to include all essential elements diminishes the effectiveness of the care provided to mothers and newborns.

Question 1

Retrospective cohort studies have the following features EXCEPT:

Accepted Answer

Generally more expensive than prospective studies

Answer

Investigator goes back in time to select study groups

Answer

Outcomes have occurred before the start of the study

Answer

Results are obtained more quickly

Question 2

What is the correct sequence of the following levels of prevention?

1. Specific protection
2. Early diagnosis and prompt treatment
3. Disability limitation and rehabilitation
4. Health promotion
Select the correct sequence from the code given below:

Accepted Answer

4, 1, 2, 3

Answer

3, 4, 1, 2

Answer

2, 3, 4, 1

Answer

1, 2, 3, 4

Question 3

Which of the following items are among the uses of epidemiology?

Accepted Answer

All of these

Answer

To study historically the rise and fall of the diseases

Answer

To identify syndromes

Answer

To arrive at community diagnosis

Question 4

The maternal and child health care indicator that best reflects the extent of pregnancy wastage as well as the quantity and quality of health care available to the mother and newborn is:

Accepted Answer

Perinatal Mortality Rate

Answer

Infant Mortality Rate

Answer

Maternal Mortality Rate

Answer

Stillbirth Rate

Question 5

To control Mansonia mosquitoes, the most effective method is:

Accepted Answer

Removal of water plants

Answer

Avoidance of water collections

Answer

Larvicidal insecticides

Answer

Oiling of water

Question 6

What is the fertility indicator that gives the approximate magnitude of completed family size?

Accepted Answer

Total Fertility Rate

Answer

General Fertility Rate

Answer

Age Specific Fertility Rate

Answer

Gross Reproduction Rate

Question 7

For a child aged four years, an Anganwadi Worker detects that the weight is lower than expected. What should the Anganwadi Worker do first regarding the malnutrition detected in the child?

Accepted Answer

Give nutritional counselling to the mother

Answer

Refer the child to the nearby Health Centre

Answer

Start fortnightly deworming

Answer

Refer the child to a nearby nutritional rehabilitation centre

Question 8

Which of the following anthropometrical measurements is/are carried out to assess the growth of children under five years of age?

1. Weight measurement
2. Height measurement
3. Mid upper arm circumference
Select the correct answer using the code given below:

Accepted Answer

1, 2 and 3

Answer

1 and 2 only

Answer

1 only

Answer

2 and 3 only

Question 9

Which of the following statements is/are correct regarding Essential Obstetric Care under the Reproductive, Maternal, Newborn and Child Health care Programme?

1. Early registration of pregnancy
2. Provision of first referral units
3. Provision of safe delivery practices
4. Provision of at least four postnatal checkups

Select the correct answer using the code given below:

Accepted Answer

1, 2, 3 and 4

Answer

2 and 3 only

Answer

1 and 3 only

Answer

1 and 2 only

Question 10

A pregnant woman visits a medical officer for an antenatal check up. The woman mentions that she had received two doses of Tetanus Toxoid vaccine four years ago. Which of the following steps should the medical officer take with regard to administration of Tetanus Toxoid vaccine as per the Government of India recommended schedule?

Accepted Answer

Two doses of Tetanus Toxoid vaccine should be administered with an interval of four weeks between the two doses

Answer

No Tetanus Toxoid vaccine is required

Answer

Only one dose of Tetanus Toxoid vaccine is required

Answer

Tetanus Immunoglobulin should be administered in the third trimester of pregnancy

UPSC-CMS 2017 — Community Medicine