Nutrition and Health Practice Questions

Q: What is the prophylactic dose of vitamin A given to children aged 1-6 years?

200,000 IU. ### Explanation The correct answer is **200,000 IU**. This dose is part of the **National Vitamin A Prophylaxis Programme**, which aims to prevent nutritional blindness due to Vitamin A Deficiency (VAD). **1. Why 200,000 IU is correct:** Vitamin A is a fat-soluble vitamin stored in the liver. In children aged **1 to 6 years**, the liver capacity is sufficient to store a large bolus dose that can be utilized over several months. Under the current guidelines, children in this age group receive **200,000 IU orally every 6 months** until their 5th birthday (totaling 9 doses starting from infancy). **2. Why the other options are incorrect:** * **100,000 IU (Option D):** This is the specific dose for infants aged **6 to 11 months**. Because infants have smaller liver storage capacity and a lower body weight, a half-dose is administered to prevent toxicity while ensuring adequate protection. * **2,000 IU (Option A):** This is closer to the Recommended Dietary Allowance (RDA) for daily intake, not a periodic prophylactic bolus. * **20,000 IU (Option B):** This dose does not correspond to any standard prophylactic or therapeutic protocol in the national program. **3. High-Yield Clinical Pearls for NEET-PG:** * **Schedule:** The 1st dose (1 lakh IU) is given at **9 months** with the Measles/MR vaccine. Subsequent doses (2 lakh IU) are given every 6 months up to **5 years** of age. * **Total Dosage:** A child receives a total of **17,00,000 IU** (17 lakh IU) across 9 doses by age five. * **Treatment of Xerophthalmia:** If a child has clinical signs (e.g., Bitot's spots), the schedule is: One dose on **Day 0**, one dose on **Day 1**, and one dose on **Day 28**. * **Oil-based:** Vitamin A is administered using a 2ml spoon (where 1ml = 1 lakh IU).

Q: What is true about lathyrism?

Prevented by parboiling. **Explanation:** Lathyrism is a form of permanent spastic paraplegia caused by the excessive consumption of **Khesari Dal (*Lathyrus sativus*)**. It is primarily seen in central India among socio-economically disadvantaged populations who use this pulse as a staple during droughts. **Why Option B is Correct:** The toxic principle in *Lathyrus sativus* is **BOAA** (Beta-oxalyl-amino-alanine), which is water-soluble. **Parboiling** (steeping the pulse in hot water and then drying it) effectively leaches out the toxin, reducing its concentration to safe levels. Another method for toxin removal is sun-drying followed by roasting. **Why Other Options are Incorrect:** * **Option A:** *Aspergillus flavus* is a fungus that produces **Aflatoxins**, which are associated with groundnuts and maize, leading to acute hepatitis and hepatocellular carcinoma, not lathyrism. * **Option C:** **Sanguinarine** is the toxic alkaloid found in Argemone oil (Mexican poppy). Its consumption leads to **Epidemic Dropsy**, characterized by bilateral edema, cardiac failure, and glaucoma. **NEET-PG High-Yield Pearls:** 1. **Toxic Principle:** BOAA (also known as ODAP). It acts as a neurotoxin by mimicking glutamate. 2. **Clinical Stages:** Lathyrism progresses through four stages: **Latent** (positive stick sign), **No-stick** (clumsy gait), **One-stick**, and **Two-stick** (permanent disability). 3. **Prevention:** The most effective long-term strategy is the replacement of *Lathyrus sativus* with safer crops like Bengal gram or the use of low-BOAA varieties. 4. **Target Population:** Typically affects young adult males (15–45 years) due to higher consumption levels.

Q: Which of the following is a semiessential amino acid?

Histidine. **Explanation:** The classification of amino acids is a high-yield topic in NEET-PG, based on whether the body can synthesize them or requires them through diet. **Why Histidine is Correct:** Amino acids are categorized into essential, non-essential, and **semi-essential**. Semi-essential amino acids (Histidine and Arginine) are those that can be synthesized by the body, but the rate of synthesis is insufficient to meet the demands during periods of rapid growth, such as infancy, childhood, or pregnancy. Therefore, they must be supplemented through the diet during these specific physiological states. While Arginine is often debated, **Histidine** is universally recognized as semi-essential (or conditionally essential) in medical literature. **Analysis of Incorrect Options:** * **A. Alanine:** This is a **non-essential** amino acid. The body can synthesize it from pyruvate via transamination; hence, dietary intake is not mandatory. * **B. Valine:** This is a strictly **essential** amino acid. It belongs to the "PVT TIM HALL" mnemonic group and cannot be synthesized by the body at all. * **D. Tyrosine:** This is a **non-essential** (specifically, conditionally essential) amino acid synthesized from Phenylalanine. It is only required in the diet if the precursor Phenylalanine is deficient (as seen in PKU). **High-Yield Clinical Pearls for NEET-PG:** * **Mnemonic for Essential Amino Acids:** **PVT TIM HALL** (Phenylalanine, Valine, Threonine, Tryptophan, Isoleucine, Methionine, Histidine, Arginine, Leucine, Lysine). * **Purely Ketogenic Amino Acids:** Leucine and Lysine. * **Limiting Amino Acids:** Pulse protein is usually deficient in Methionine, while Cereal protein is deficient in Lysine. * **Histidine Fact:** It is the precursor for Histamine and acts as a vital buffer in hemoglobin.

Q: Pasteurized milk is tested by which of the following methods?

Phosphatase test. **Explanation:** **Phosphatase Test (Correct Answer):** The Phosphatase test is the standard method used to check the efficiency of pasteurization. It is based on the principle that the enzyme **Alkaline Phosphatase (ALP)** is naturally present in raw milk and has a heat resistance slightly greater than that of common milk-borne pathogens (like *Mycobacterium tuberculosis* and *Coxiella burnetii*). If pasteurization is successful, the enzyme is completely inactivated. A positive test (presence of the enzyme) indicates either inadequate heating or post-pasteurization contamination with raw milk. **Analysis of Incorrect Options:** * **OTA (Orthotolidine Arsenite) Test:** This is used to determine **Residual Chlorine** (both free and combined) in drinking water. It is a crucial test in environmental sanitation, not milk processing. * **Nitrate Test:** This is typically used to detect the presence of nitrates in water or as a biochemical test in microbiology (Nitrate Reduction Test) to differentiate bacteria. * **Nitroprusside Test:** Also known as Rothera’s test, it is used to detect **Ketone bodies** (acetone and acetoacetic acid) in urine, commonly used in the diagnosis of Diabetic Ketoacidosis. **High-Yield Clinical Pearls for NEET-PG:** * **Standard Pasteurization Methods:** 1. **Holder Method:** 63–66°C for 30 minutes. 2. **HTST (High-Temperature Short-Time):** 72°C for 15 seconds (followed by rapid cooling to 4°C). * **Standard for Milk Quality:** The **Methylene Blue Reduction Test** is used to check the bacterial quality (cleanliness) of raw milk before processing. * **Phosphatase vs. Peroxidase:** While Phosphatase is destroyed by pasteurization, the enzyme Peroxidase is only destroyed at much higher temperatures (Boiling).

Q: If ASHA finds any child lies in the yellow area according to the ICDS growth chart, what action should be taken?

Child is referred to the Primary Health Centre (PHC). ### Explanation The ICDS (Integrated Child Development Services) growth chart, based on WHO Growth Standards, uses a color-coded system to monitor a child's nutritional status based on **Weight-for-Age**. **1. Why Option B is Correct:** The growth chart is divided into three zones: * **Green Zone:** Normal nutritional status (Above -2SD). * **Yellow Zone:** Moderately underweight (Between -2SD and -3SD). * **Orange Zone:** Severely underweight (Below -3SD). When an ASHA or Anganwadi Worker identifies a child in the **Yellow Zone**, it indicates **Moderate Acute Malnutrition (MAM)**. According to ICDS guidelines, these children must be referred to the **Primary Health Centre (PHC)** for a medical check-up to rule out underlying infections and to receive targeted nutritional supplementation (Double Ration). **2. Why Other Options are Incorrect:** * **Option A:** Referral to a higher center (NRC or District Hospital) is reserved for children in the **Orange Zone** (Severe Acute Malnutrition) or those with medical complications. * **Option C:** While community-based management is part of the strategy, the immediate protocol-driven action for an ASHA is a formal referral to the PHC for assessment. * **Option D:** "Only follow-up" is insufficient. While follow-up is necessary, the child requires an initial clinical evaluation and supplementary nutrition. ### High-Yield Clinical Pearls for NEET-PG: * **Growth Chart Type:** The ICDS uses the **WHO Growth Standards (2006)**. * **Reference Parameters:** The ICDS chart specifically monitors **Weight-for-Age**. * **Growth Curve Trends:** A flat curve (stagnant weight) or a falling curve is a more sensitive indicator of malnutrition than a single point in the yellow zone. * **SAM Criteria:** Weight-for-height < -3SD, Mid-Upper Arm Circumference (MUAC) < 11.5 cm, or presence of bilateral pitting edema.

Q: According to WHO, exclusive breastfeeding should be continued up to what age?

6 months. **Explanation:** The World Health Organization (WHO) and UNICEF recommend **exclusive breastfeeding for the first 6 months (180 days)** of life. Exclusive breastfeeding means the infant receives only breast milk; no other liquids or solids are given, not even water, with the exception of oral rehydration solution, or drops/syrups of vitamins, minerals, or medicines. **Why 6 months is correct:** By 6 months of age, breast milk provides all the energy and nutrients that an infant needs. It offers critical protection against gastrointestinal infections and pneumonia. Beyond 6 months, breast milk alone is no longer sufficient to meet the increasing nutritional requirements (especially iron and energy), necessitating the introduction of nutritionally adequate and safe complementary foods while continuing breastfeeding. **Why other options are incorrect:** * **4 months:** Previously, some guidelines suggested 4–6 months, but research confirmed that extending exclusivity to 6 months significantly reduces morbidity from diarrheal diseases without compromising growth. * **8 and 10 months:** Delaying complementary feeding beyond 6 months puts the infant at risk for growth faltering, malnutrition, and micronutrient deficiencies (like iron-deficiency anemia). **High-Yield Clinical Pearls for NEET-PG:** * **Duration:** Breastfeeding should be continued up to **2 years of age or beyond** along with complementary feeding. * **Initiation:** Breastfeeding should be initiated within **1 hour** of birth. * **Colostrum:** The "first milk" is rich in Antibodies (IgA) and serves as the baby's first immunization. * **Energy Density:** Breast milk provides approximately **67 kcal/100 ml**. * **Contraindications:** Very few exist, primarily maternal HIV (in specific settings), active untreated TB, or infants with Galactosemia.

Q: Which of the following grains has the highest fat content?

Bajra. **Explanation:** The correct answer is **Bajra (Pearl Millet)**. In the context of nutritional profiles of cereals and millets, Bajra stands out for its high energy density, primarily due to its superior fat content compared to other common grains. **1. Why Bajra is Correct:** Bajra contains approximately **5 grams of fat per 100 grams**. This is significantly higher than the fat content found in major cereals. Beyond fat, Bajra is also a rich source of iron (8 mg/100g), making it a high-yield nutritional grain often discussed in the context of preventing nutritional anemia and providing energy-dense weaning foods. **2. Why the Other Options are Incorrect:** * **Wheat:** Contains about **1.5 to 2 grams** of fat per 100g. Its primary nutritional strength is its protein content (gluten) and B-complex vitamins. * **Rice:** Contains the least amount of fat among these options, approximately **0.5 to 1 gram** per 100g. Most of the fat is lost during the polishing process. * **Maize:** Contains about **3.6 grams** of fat per 100g. While higher than wheat and rice, it still falls short of Bajra. Maize is clinically significant for being deficient in Tryptophan and Lysine, leading to Pellagra in maize-eating populations. **3. High-Yield Facts for NEET-PG:** * **Highest Protein Content:** Wheat (~12%) and Bajra (~11.5%). * **Highest Calcium Content:** Ragi (Finger Millet) is the "Calcium King" with **344 mg/100g**. * **Limiting Amino Acid in Cereals:** Lysine (Cereals are generally rich in Methionine). * **Limiting Amino Acid in Pulses:** Methionine (Pulses are generally rich in Lysine). * **Pellagragenic Diet:** A diet based on Maize (due to low Tryptophan) or Jowar (due to high Leucine interfering with Tryptophan metabolism).

Question 1

A district health officer visited local general stores and found that turmeric was adulterated with lead chromate powder and coriander with cow dung. Based on these findings, what can be concluded about the food in this district?

Accepted Answer

Adulterated

Answer

Fortified

Answer

Intoxicated

Answer

Infected

Question 2

What is the prophylactic dose of vitamin A given to children aged 1-6 years?

Accepted Answer

200,000 IU

Answer

2,000 IU

Answer

20,000 IU

Answer

100,000 IU

Question 3

What is true about lathyrism?

Accepted Answer

Prevented by parboiling

Answer

Caused by Aspergillus flavus

Answer

Sanguinarine is the toxic principle

Answer

All of the above

Question 4

What is the recommended daily protein intake for an adult male?

Accepted Answer

1 gm/kg/day

Answer

0.5 gm/kg/day

Answer

1.5 gm/kg/day

Answer

2 gm/kg/day

Question 5

Which of the following is a semiessential amino acid?

Accepted Answer

Histidine

Answer

Alanine

Answer

Valine

Answer

Tyrosine

Question 6

Pasteurized milk is tested by which of the following methods?

Accepted Answer

Phosphatase test

Answer

OTA test

Answer

Nitrate test

Answer

Nitroprusside test

Question 7

Hypothyroidism is associated with deficiency of which of the following micronutrients?

Accepted Answer

Iodine

Answer

Iron

Answer

Zinc

Answer

Fluorine

Question 8

If ASHA finds any child lies in the yellow area according to the ICDS growth chart, what action should be taken?

Accepted Answer

Child is referred to the Primary Health Centre (PHC)

Answer

Child is referred to a higher center

Answer

Community-based management of malnutrition

Answer

Only follow-up

Question 9

According to WHO, exclusive breastfeeding should be continued up to what age?

Accepted Answer

6 months

Answer

4 months

Answer

8 months

Answer

10 months

Question 10

Which of the following grains has the highest fat content?

Accepted Answer

Bajra

Answer

Wheat

Answer

Rice

Answer

Maize

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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