Diet and Non-Communicable Diseases Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Diet and Non-Communicable Diseases. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Diet and Non-Communicable Diseases Indian Medical PG Question 1: The non-modifiable risk factor for hypertension is -
- A. Environment stress
- B. Obesity
- C. Salt intake
- D. Age (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***Age***
- Age is a **non-modifiable** risk factor because it is an inherent biological process that cannot be changed. [3]
- The risk of developing **hypertension** generally increases with advancing age due to arterial stiffening and other physiological changes. [1]
*Environment stress*
- **Environmental stress** is considered a **modifiable** risk factor because individuals can learn coping mechanisms or make lifestyle changes to reduce its impact.
- Chronic stress can lead to **sympathetic nervous system activation**, contributing to elevated blood pressure. [4]
*Obesity*
- **Obesity** is a **modifiable** risk factor, as it can be directly addressed through diet, exercise, and other lifestyle interventions. [2]
- It increases the risk of hypertension by fostering **insulin resistance**, **inflammation**, and increased **cardiac output**.
*Salt intake*
- **Salt intake** is a **modifiable** risk factor as it can be controlled through dietary choices. [2]
- Excessive sodium consumption can lead to **fluid retention** and increased blood volume, thereby raising blood pressure.
Diet and Non-Communicable Diseases Indian Medical PG Question 2: What is the maximum age limit for children covered under the Integrated Child Development Services (ICDS) scheme?
- A. 6 years (Correct Answer)
- B. 10 years
- C. 4 years
- D. 8 years
Diet and Non-Communicable Diseases Explanation: ***6 years***
- The **Integrated Child Development Services (ICDS) scheme** is primarily designed to address the nutritional, health, and developmental needs of children under the age of 6.
- This age limit ensures that critical early childhood development—from infancy through preschool—is supported with interventions like **supplementary nutrition**, **immunization**, health check-ups, and pre-school education.
*10 years*
- This age range would extend coverage beyond the **critical early childhood development period** that ICDS focuses on.
- Programs for children aged 6 to 10 years typically fall under primary education or other health initiatives, not the targeted ICDS framework.
*4 years*
- This is **insufficient** as ICDS is specifically designed to cover the entire **0-6 years age group**, ensuring comprehensive early childhood development support.
- Limiting coverage to 4 years would exclude preschool-aged children (4-6 years) from crucial developmental interventions during a critical growth period.
*8 years*
- An 8-year age limit would also exceed the primary target group for ICDS, which emphasizes **early childhood intervention** up to 6 years.
- Children aged 6 to 8 are usually enrolled in primary school, and their specific needs are often addressed through educational and school-based health programs.
Diet and Non-Communicable Diseases Indian Medical PG Question 3: All are modifiable risk factors except
- A. Weight
- B. Cigarette smoking
- C. Diabetes
- D. Personality (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***Personality***
- **Personality traits**, such as Type A behavior, are **not directly modifiable** through lifestyle changes or medical interventions.
- While coping mechanisms can be learned, the underlying personality structure is generally considered a **non-modifiable risk factor** for various health outcomes.
*Weight*
- **Weight** is a **modifiable risk factor** that can be changed through diet, exercise, and other lifestyle interventions.
- Maintaining a **healthy weight** reduces the risk of numerous diseases, including cardiovascular disease and diabetes.
*Cigarette smoking*
- **Cigarette smoking** is a highly **modifiable risk factor** that can be completely eliminated by quitting.
- Smoking cessation significantly reduces the risk of cancer, heart disease, and respiratory illnesses.
*Diabetes*
- **Established diabetes** is considered a **non-modifiable risk factor** for cardiovascular complications and other diseases in epidemiological classification.
- While the **risk of developing diabetes** can be modified through lifestyle interventions, and **glycemic control** can be managed, the disease state itself once present is categorized as non-modifiable.
- However, **Personality** is the more clearly non-modifiable factor among the options, as it represents an inherent trait rather than an acquired condition.
Diet and Non-Communicable Diseases Indian Medical PG Question 4: Primordial prevention in myocardial infarction is all except -
- A. Change in life style
- B. Change in Nutritional habits
- C. Maintenance of normal body weight
- D. Screening for hypertension (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***Screening for hypertension***
- **Screening for hypertension** falls under **primary prevention**, as it aims to detect and treat a risk factor in individuals who have already developed a predisposition to the disease.
- **Primordial prevention** focuses on preventing the development of risk factors themselves, rather than detecting them once they've emerged.
*Change in life style*
- **Lifestyle changes** such as promoting regular physical activity and avoiding smoking are key components of **primordial prevention**, preventing the development of risk factors like obesity and hypertension.
- These interventions aim to stop risk factors from even appearing in healthy populations.
*Change in Nutritional habits*
- Promoting **healthy nutritional habits** from an early age is a fundamental strategy in **primordial prevention**, aiming to prevent the development of conditions like obesity and hyperlipidemia.
- This proactive approach seeks to establish healthy patterns before disease risk factors take hold.
*Maintenance of normal body weight*
- Encouraging and supporting the **maintenance of normal body weight** in the general population is a classic example of **primordial prevention**.
- This prevents the emergence of obesity, a major risk factor for cardiovascular diseases like myocardial infarction.
Diet and Non-Communicable Diseases Indian Medical PG Question 5: All of the following are risk factors for gastric cancer except?
- A. Diet high in pickled vegetables
- B. Smoking
- C. Helicobacter pylori infection
- D. Duodenal ulcer (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***Duodenal ulcer***
- A history of **duodenal ulcers** is generally protective against gastric cancer, possibly due to the increased acid production in the duodenum or differences in the distribution of *H. pylori* strains [1].
- While *H. pylori* can cause both duodenal ulcers and gastric cancer, specific strains associated with duodenal ulcers may be less virulent in terms of oncogenic potential for the stomach [1].
*Diet high in pickled vegetables*
- Diets high in **salted and pickled foods** are associated with an increased risk of gastric cancer.
- These foods often contain **nitrosamines** and other carcinogenic compounds that can directly damage gastric mucosa.
*Smoking*
- **Smoking** is a well-established and significant risk factor for gastric cancer, increasing the risk by 1.5 to 2.5 times compared to non-smokers.
- Carcinogens in tobacco smoke can reach the stomach mucosa, promoting cellular damage and malignant transformation.
*Helicobacter pylori infection*
- **Chronic *Helicobacter pylori* infection** is the strongest known risk factor for gastric cancer, particularly for the intestinal type [2].
- It causes chronic inflammation and atrophy of the gastric mucosa, leading to a cascade known as Correa's pathway (chronic gastritis → atrophic gastritis → intestinal metaplasia → dysplasia → carcinoma) [2].
Diet and Non-Communicable Diseases Indian Medical PG Question 6: Obesity predisposes to all, except ?
- A. Diabetes
- B. Peptic ulcer disease (Correct Answer)
- C. Breast cancer
- D. Colon cancer
Diet and Non-Communicable Diseases Explanation: ***Peptic ulcer disease***
- **Obesity** is generally **not considered a direct risk factor** for peptic ulcer disease; instead, factors like *H. pylori* infection and NSAID use are primary causes.
- While comorbidities associated with obesity might indirectly influence gastric health, obesity itself doesn't directly predispose to ulcer formation.
*Diabetes*
- **Obesity**, particularly **abdominal obesity**, greatly increases the risk of **insulin resistance** and **Type 2 Diabetes Mellitus**.
- Excess adipose tissue contributes to systemic inflammation and alters glucose metabolism.
*Breast cancer*
- **Obesity** is a significant risk factor for **postmenopausal breast cancer** due to increased estrogen production in adipose tissue.
- It also promotes chronic inflammation, which can contribute to cancer development and progression.
*Colon cancer*
- **Obesity** is linked to an increased risk of **colorectal cancer** due to associated **insulin resistance**, chronic inflammation, and altered hormone levels.
- These factors can stimulate cell proliferation and inhibit apoptosis in the colon.
Diet and Non-Communicable Diseases Indian Medical PG Question 7: Recommended interventions to reduce the incidence of coronary artery disease include the following except which of the following?
- A. Reduce salt intake to < 5g per day.
- B. No alcohol consumption.
- C. Dietary cholesterol < 100 mg/1000kcal/d
- D. Fat intake < 20% of total energy. (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***Fat intake < 20% of total energy.***
- While reducing unhealthy fat intake is crucial for cardiovascular health, recommending total fat intake to be less than 20% of total energy is generally **too restrictive** and not a standard recommendation for the general population.
- Current guidelines focus on the *type* of fat (limiting saturated and trans fats) rather than a strict overall percentage, as healthy fats are essential for various bodily functions [3].
*Dietary cholesterol < 100 mg/1000kcal/d*
- Reducing dietary cholesterol intake is a widely accepted recommendation to lower the risk of **coronary artery disease (CAD)**, as high cholesterol contributes to atherosclerosis [3].
- Limiting cholesterol intake to less than 100 mg per 1000 kcal per day aligns with strategies for managing blood lipid levels [1].
*Reduce salt intake to < 5g per day.*
- Reducing salt intake to less than 5 grams per day is strongly recommended to lower **blood pressure**, a major risk factor for CAD [2].
- High sodium intake contributes to hypertension, which places increased strain on the cardiovascular system [2].
*No alcohol consumption.*
- While excessive alcohol consumption is detrimental to cardiovascular health, a recommendation of **no alcohol consumption** is not universally made to reduce CAD risk.
- Moderate alcohol intake (e.g., one drink per day for women, two for men) has been associated with a potential reduction in CAD risk in some studies, though this is debated.
Diet and Non-Communicable Diseases Indian Medical PG Question 8: Which condition has the maximum relative risk attributed to obesity?
- A. Hypertension
- B. CHD
- C. DM (Correct Answer)
- D. Cancer
Diet and Non-Communicable Diseases Explanation: ***DM***
- Obesity is a major risk factor for Type 2 Diabetes Mellitus (T2DM), with a **relative risk often exceeding 3-7 times that of normal-weight individuals**, and even higher for severe obesity.
- The link is primarily due to **insulin resistance** caused by increased adipose tissue.
*Hypertension*
- Obesity significantly increases the risk of hypertension, with a relative risk typically in the range of **2 to 3 times higher** than normal-weight individuals.
- The mechanisms involve increased **blood volume**, **sympathetic nervous system activity**, and **renal sodium reabsorption**.
*CHD*
- Obesity is a strong independent risk factor for Coronary Heart Disease (CHD), contributing to a relative risk of approximately **1.5 to 2.5 times higher** than normal weight.
- It often acts by exacerbating other risk factors like **hypertension**, **dyslipidemia**, and **diabetes**.
*Cancer*
- Obesity is linked to various cancers, including endometrial, esophageal adenocarcinoma, renal cell, and breast cancer in postmenopausal women, with relative risks typically ranging from **1.2 to 2 times higher** for specific cancers.
- The pathways include **chronic inflammation**, altered **hormone levels** (e.g., estrogen), and **insulin-like growth factor signaling**.
Diet and Non-Communicable Diseases Indian Medical PG Question 9: All of the following are global targets for WHO Global Action Plan (2013–2020) for Prevention and Control of NCDs, EXCEPT:
- A. A 30% relative reduction in mean population intake of salt/sodium
- B. A 25% relative reduction in risk of premature mortality from cardiovascular diseases, cancer, diabetes and chronic respiratory diseases
- C. At least 10 % relative reduction in the harmful use of alcohol
- D. A 15% relative reduction in healthcare costs related to NCDs (Correct Answer)
Diet and Non-Communicable Diseases Explanation: ***A 15% relative reduction in healthcare costs related to NCDs***
- While reducing healthcare costs is an important outcome of NCD prevention, it was **not explicitly stated as one of the nine global targets** in the WHO Global Action Plan (2013–2020) for the Prevention and Control of NCDs.
- The targets primarily focused on **risk factor reduction and mortality reduction**, rather than direct cost reduction percentages.
*A 30% relative reduction in mean population intake of salt/sodium*
- This is one of the **specified global targets** of the WHO NCD Global Action Plan, aiming to reduce a significant dietary risk factor for cardiovascular diseases.
- High sodium intake is a major contributor to **hypertension**, a leading risk factor for NCDs.
*A 25% relative reduction in risk of premature mortality from cardiovascular diseases, cancer, diabetes and chronic respiratory diseases*
- This represents the **overarching mortality reduction target** for the key NCDs, making it a central goal of the WHO action plan.
- Reducing premature mortality is a direct measure of the **effectiveness of NCD prevention and control strategies**.
*At least 10 % relative reduction in the harmful use of alcohol*
- This is another **identified global target** within the WHO NCD Global Action Plan, recognizing alcohol as a major modifiable risk factor for NCDs.
- Harmful alcohol use contributes to various NCDs, including **liver disease, cardiovascular disease, and certain cancers**.
Diet and Non-Communicable Diseases Indian Medical PG Question 10: What is the key characteristic of Body Mass Index (BMI) considerations for the Asian population?
- A. Increased morbidity at lower values (Correct Answer)
- B. BMI cut-offs for obesity differ from international standards
- C. Increased morbidity at higher BMI values
- D. Obesity is defined as > 25 kg/m2
Diet and Non-Communicable Diseases Explanation: ***Increased morbidity at lower values***
- Due to differences in body composition and fat distribution, Asian populations tend to experience **higher risks of developing obesity-related diseases** (e.g., type 2 diabetes, cardiovascular disease) at **lower BMI values** compared to non-Asian populations.
- This increased morbidity at lower BMI values highlights the need for population-specific BMI cut-offs for health risk assessment.
*BMI cut-offs for obesity differ from international standards*
- While it is true that **BMI cut-offs for obesity differ for Asian populations**, this option does not fully describe *why* these cut-offs differ.
- The difference in cut-offs is precisely *because* increased morbidity is seen at lower BMI values, making this option less specific than the correct answer.
*Increased morbidity at higher BMI values*
- While morbidity does increase at higher BMI values in all populations, this statement is **true for Caucasians and other populations**, but the defining characteristic for Asian populations is the *lower* BMI at which morbidity risk begins to significantly increase.
- This option does not capture the unique aspect of BMI and health risks in the Asian population.
*Obesity is defined as > 25 kg/m2*
- For many Asian populations, a BMI of **> 25 kg/m²** is often used as the cut-off for **overweight**, not necessarily obesity, and **obesity is often defined at > 27.5 kg/m² or 30 kg/m² depending on the specific group**.
- The international standard for obesity (BMI ≥ 30 kg/m²) is often considered too high for many Asian populations to capture risk effectively.
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