Nutrition and Health Practice Questions

Q: Which of the following is not included in the Malnutrition Universal Screening Tool (MUST) for the assessment of risk of undernutrition?

Age. The **Malnutrition Universal Screening Tool (MUST)** is a five-step screening tool designed to identify adults who are malnourished, at risk of malnutrition, or obese. It is widely used in both community and hospital settings. ### Why Age is the Correct Answer **Age** is not a parameter used in the MUST scoring system. While age is a risk factor for malnutrition, the MUST tool focuses on physiological and clinical indicators that reflect current nutritional status rather than demographic variables. ### Explanation of Incorrect Options (Components of MUST) The MUST score is calculated based on three clinical parameters: 1. **Body Mass Index (BMI):** Points are assigned based on BMI (>20 = 0; 18.5–20 = 1; 10% = 2). 3. **Acute Disease Effect:** If the patient is acutely ill and there has been or is likely to be **no nutritional intake for >5 days**, 2 points are added. ### High-Yield Clinical Pearls for NEET-PG * **Target Population:** MUST is designed for **adults**. It is not validated for pediatric populations. * **The 5 Steps of MUST:** 1. Measure height/weight (BMI). 2. Note percentage of unplanned weight loss. 3. Establish acute disease effect. 4. Add scores to determine **Overall Risk of Malnutrition** (0 = Low, 1 = Medium, 2+ = High). 5. Develop a management plan based on the risk category. * **Alternative Tools:** Do not confuse MUST with the **Mini Nutritional Assessment (MNA)**, which is specifically designed for the **elderly** (age >65) and does include age-related physiological factors.

Q: According to WHO prevalence criteria for determining xerophthalmia problems, which of the following is true for an endemic area?

Night blindness in 1% of the population. **Explanation:** Vitamin A deficiency (VAD) is a significant public health problem in many developing countries. To identify areas where xerophthalmia is a public health priority, the WHO has established specific **prevalence criteria** for children aged 6–71 months (under 6 years). **1. Why Option D is Correct:** According to WHO, **Night Blindness (XN)** is considered a public health problem if its prevalence is **≥ 1%** in the target pediatric population. Night blindness is the earliest clinical symptom of VAD and serves as a sensitive indicator for community-based screening. **2. Analysis of Incorrect Options:** * **Option A:** The cutoff for **Bitot’s spots (X1B)** is **≥ 0.5%**, not 5%. A 5% prevalence would indicate an extremely severe epidemic. * **Option B:** **Conjunctival xerosis (X1A)** is no longer included in the WHO prevalence criteria because it is subjective and lacks diagnostic reliability in field surveys. * **Option C:** The criteria for **Corneal ulceration/Keratomalacia (X3A/X3B)** is **≥ 0.01%**. While 0.05% exceeds this, the standard threshold defined by WHO is 0.01%. Additionally, the term used in the criteria is "Corneal xerosis/ulceration," not just conjunctival ulcers. **3. High-Yield Facts for NEET-PG:** * **WHO Cut-off Points (Prevalence > these values = Public Health Problem):** * Night Blindness (XN): **> 1%** * Bitot's Spots (X1B): **> 0.5%** * Corneal Xerosis/Ulcer/Keratomalacia (X2/X3A/X3B): **> 0.01%** * Xerophthalmia-related Corneal Scars (XS): **> 0.05%** * Serum Retinol ( 5%** * **Prophylaxis:** Under the National Vitamin A Prophylaxis Program, the first dose (1 lakh IU) is given at 9 months (with Measles vaccine), followed by 2 lakh IU every 6 months until age 5 (Total 9 doses/17 lakh IU).

Q: What is the total osmolarity of reduced osmolarity ORS?

245 mOsm/L. **Explanation:** The correct answer is **245 mOsm/L**. In 2004, the WHO and UNICEF released the revised formula for **Reduced Osmolarity ORS** to improve the management of non-cholera diarrhea in children. **1. Why 245 mOsm/L is correct:** The standard ORS used previously (311 mOsm/L) was found to occasionally cause hypernatremia and increased stool output due to its high osmotic load. The reduced osmolarity version (245 mOsm/L) lowers the concentrations of Sodium and Glucose. This reduction decreases stool output by 20%, reduces vomiting by 30%, and minimizes the need for unscheduled IV fluids by 33%, making it safer and more effective. **2. Analysis of Incorrect Options:** * **A. 270 mOsm/L:** This is a common distractor; it does not represent any standard WHO ORS formulation. * **C. 290 mOsm/L:** This is the approximate osmolarity of normal plasma, but not the specific value for the WHO reduced osmolarity ORS. * **D. 310 mOsm/L:** This refers to the **Old/Standard WHO ORS** (specifically 311 mOsm/L), which is no longer the primary recommendation for routine diarrhea management. **High-Yield Clinical Pearls for NEET-PG:** * **Composition of Reduced ORS (per Liter):** * Sodium Chloride: 2.6 g * Glucose (Anhydrous): 13.5 g * Potassium Chloride: 1.5 g * Trisodium Citrate: 2.9 g * **Molar Concentrations (mmol/L):** Sodium (75), Glucose (75), Chloride (65), Potassium (20), Citrate (10). **Total = 245.** * **Sodium:Glucose Ratio:** Always **1:1** in the new formula to optimize the SGLT-1 co-transport mechanism in the small intestine. * **Trisodium Citrate** is preferred over Bicarbonate because it increases the shelf life of the ORS packet.

Q: Approximate caloric requirements of an infant at the age of 12 months would be?

700 Kcal. **Explanation:** The caloric requirement of an infant is primarily determined by their rapid growth rate and high basal metabolic rate. According to the **ICMR-NIN (2020) guidelines**, the energy requirements for infants are calculated based on body weight and age. **Why 700 Kcal is correct:** For an infant aged 6–12 months, the recommended dietary allowance (RDA) is approximately **80 kcal/kg/day**. At 12 months (1 year), an average healthy Indian child weighs approximately **8.5 to 9 kg**. * Calculation: 8.9 kg × 80 kcal ≈ **712 kcal/day**. Thus, **700 Kcal** is the closest approximate value for a one-year-old. **Analysis of Incorrect Options:** * **A. 500 Kcal:** This is insufficient for a 12-month-old. This value is closer to the requirement of a newborn or a 3-month-old infant (approx. 110 kcal/kg/day for a 4.5 kg baby). * **C. 1,000 Kcal:** This is the approximate requirement for a **toddler (1–3 years)**. As growth velocity slows down after the first year, the total calories increase due to weight gain, but the kcal/kg requirement drops. * **D. 1,200 Kcal:** This exceeds the requirement for an infant and is more appropriate for a child aged 3–4 years. **High-Yield Clinical Pearls for NEET-PG:** 1. **Energy Density:** In the first 6 months, requirements are higher per unit of body weight (**108 kcal/kg**) compared to 6–12 months (**80 kcal/kg**). 2. **Protein Requirement:** For an infant (6–12 months), the protein requirement is approximately **1.05 g/kg/day** (ICMR 2020). 3. **Growth Milestone:** A baby usually **triples** its birth weight by 12 months of age, necessitating this specific caloric intake. 4. **Rule of Thumb:** Total calories for a child can be roughly estimated by the formula: $1000 + (Age\ in\ years \times 100)$. For a 1-year-old, this equals 1100 Kcal, but for strict infancy (up to 12 months), the weight-based ICMR calculation (700-800 kcal) is preferred for exams.

Q: What is the daily requirement of iron during pregnancy?

35 mg. **Explanation:** The correct answer is **35 mg/day**. This value is based on the **ICMR-NIN (2020) Dietary Guidelines**, which are the current gold standard for NEET-PG questions regarding Indian nutritional requirements. **1. Why 35 mg is correct:** During pregnancy, iron requirements increase significantly to support the expansion of maternal red cell mass, the development of the placenta, and the growth of the fetus. The ICMR-NIN 2020 guidelines recommend **35 mg/day** for pregnant women (increased from the previous 21 mg/day for non-pregnant women). This ensures adequate iron stores to prevent maternal anemia and low birth weight. **2. Why other options are incorrect:** * **1 mg & 2 mg:** These values represent the *absorbed* iron required daily to replace basal losses in non-pregnant adults. Because dietary iron absorption is low (approx. 5–10%), the *oral intake* must be much higher than the physiological requirement. * **3 mg:** This is roughly the physiological requirement (absorbed iron) during the third trimester, but it does not represent the total daily *dietary* intake required. **3. High-Yield Clinical Pearls for NEET-PG:** * **IFA Supplementation (Anemia Mukt Bharat):** Pregnant women should receive **100 mg elemental iron** and **500 µg folic acid** daily for 180 days, starting from the second trimester (13 weeks). * **Lactation Requirement:** The iron requirement drops to **21 mg/day** during lactation (same as a non-pregnant woman) because menstruation is often suppressed (lactational amenorrhea). * **Adolescent Girls:** The requirement is **30-32 mg/day** depending on age. * **Absorption:** Vitamin C (Citrus fruits) enhances iron absorption, while phytates (cereals) and tannins (tea/coffee) inhibit it.

Q: What is the approximate protein content of breast milk?

0.9-1.1 g/dL. **Explanation:** The protein content of mature human breast milk is approximately **0.9 to 1.1 g/dL**. This is a high-yield fact in Community Medicine and Pediatrics. While breast milk has a lower total protein concentration compared to animal milk, its biological value is superior. The proteins consist primarily of **whey (60%)** and **casein (40%)**, making it easily digestible for the infant's immature gastrointestinal tract. **Analysis of Options:** * **Option A (0.9-1.1 g/dL):** This is the correct physiological range for mature breast milk. It provides the ideal nitrogen balance for growth without overloading the infant's developing kidneys (low renal solute load). * **Option B (2.0-3.0 g/dL):** This range is too high for human milk but is closer to the protein content found in certain animal milks (e.g., goat milk is ~3.5 g/dL). * **Option C (3.5-4.0 g/dL):** This represents the protein content of **Cow’s milk (approx. 3.2–3.5 g/dL)**. Cow’s milk has nearly three times the protein of human milk, predominantly casein, which forms hard curds in the infant's stomach. * **Option D (5.0-5.5 g/dL):** This value is significantly higher than any standard mammalian milk used for infant feeding and would cause severe dehydration and uremia in a neonate. **High-Yield NEET-PG Pearls:** 1. **Energy Value:** Breast milk provides approximately **65–70 kcal/100 ml**. 2. **Fat Content:** Roughly **3.5–4.5 g/dL**, providing about 50% of the total calories. 3. **Carbohydrates:** Human milk is rich in **Lactose (7 g/dL)**, which is higher than in cow’s milk (4.5 g/dL). 4. **Colostrum:** The first milk produced (days 1–5) is richer in proteins (especially IgA) and fat-soluble vitamins but lower in fat and lactose compared to mature milk.

Q: What is the concentration of vitamin A supplement administered in the Prevention of Nutritional Blindness in Children Programme?

1 Lakh IU/ml. ### Explanation **Correct Answer: B. 1 Lakh IU/ml** The **National Programme for Prevention of Nutritional Blindness due to Vitamin A Deficiency** utilizes a specific oil-based concentrate of Vitamin A (Retinyl Palmitate). The standard formulation provided by the government is **1 Lakh IU per 1 ml**. This concentration is designed for ease of administration using a standardized 2 ml spoon: * **Infants (6–11 months):** Receive a half-spoon dose (1 ml), totaling **1 Lakh IU**. * **Children (1–5 years):** Receive a full-spoon dose (2 ml), totaling **2 Lakh IU**. **Analysis of Incorrect Options:** * **Option A (25,000 IU/ml):** This is too dilute. Administering a therapeutic dose of 2 Lakh IU would require 8 ml of liquid, increasing the risk of aspiration and making mass distribution inefficient. * **Options C & D (3 Lakh and 5 Lakh IU/ml):** These concentrations are excessively high. Vitamin A is fat-soluble and stored in the liver; such high concentrations significantly increase the risk of acute toxicity (hypervitaminosis A), characterized by vomiting, headache, and bulging fontanelles. **High-Yield Clinical Pearls for NEET-PG:** * **Schedule:** The first dose is given at **9 months** (with Measles/MR vaccine). Subsequent doses are given every **6 months** up to the age of 5 years. * **Total Doses:** A child receives a total of **9 doses** (1 + 8). * **Total Cumulative Dose:** 17 Lakh IU (1 Lakh + [8 × 2 Lakh]). * **Target Age Group:** 6 months to 5 years (60 months). * **Treatment of Xerophthalmia:** If a child shows clinical signs (e.g., Bitot's spots), the treatment schedule is: **Day 0, Day 1, and Day 14** (2 Lakh IU per dose, except for infants <6 months who get 50,000 IU).

Question 1

Vegetable fat differs from animal oil in being:

Accepted Answer

Contains less fat-soluble vitamins

Answer

More saturated

Answer

More stable

Answer

More atherosclerotic

Question 2

Which of the following is not included in the Malnutrition Universal Screening Tool (MUST) for the assessment of risk of undernutrition?

Accepted Answer

Age

Answer

Body Mass Index (BMI)

Answer

Weight loss

Answer

Acute disease effect

Question 3

According to WHO prevalence criteria for determining xerophthalmia problems, which of the following is true for an endemic area?

Accepted Answer

Night blindness in 1% of the population

Answer

Bitot spot in 5% of the population under 6 years

Answer

Conjunctival xerosis in 1% of the population

Answer

Conjunctival ulcers in 0.05% of the population

Question 4

What is the total osmolarity of reduced osmolarity ORS?

Accepted Answer

245 mOsm/L

Answer

270 mOsm/L

Answer

290 mOsm/L

Answer

310 mOsm/L

Question 5

Approximate caloric requirements of an infant at the age of 12 months would be?

Accepted Answer

700 Kcal

Answer

500 Kcal

Answer

1,000 Kcal

Answer

1,200 Kcal

Question 6

An agricultural labourer presented with progressive spastic paralysis and was diagnosed with neurolathyrism. This condition results from the consumption of which of the following?

Accepted Answer

Beta-N-oxalyl-L-alpha, beta-diaminopropionic acid (BOAA)

Answer

Aflatoxin

Answer

Pyruvic acid

Answer

Sanguinarine

Question 7

What is the daily requirement of iron during pregnancy?

Accepted Answer

35 mg

Answer

1 mg

Answer

2 mg

Answer

3 mg

Question 8

What is the approximate protein content of breast milk?

Accepted Answer

0.9-1.1 g/dL

Answer

2.0-3.0 g/dL

Answer

3.5-4.0 g/dL

Answer

5.0-5.5 g/dL

Question 9

Iodised salt is given in an area endemic to Goiter. What type of prevention is this?

Accepted Answer

Specific protection

Answer

Health promotion

Answer

Primordial prevention

Answer

Treatment

Question 10

What is the concentration of vitamin A supplement administered in the Prevention of Nutritional Blindness in Children Programme?

Accepted Answer

1 Lakh IU/ml

Answer

25,000 IU/ml

Answer

3 Lakh IU/ml

Answer

5 Lakh IU/ml

Nutrition and Health — MCQs

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