Nutrition and Health Practice Questions

Q: Height is not included in which index of obesity?

Corpulence index. ### Explanation The correct answer is **Corpulence Index** (also known as the Ponderal Index in some older texts, but specifically distinct in clinical nutrition). In the context of standard obesity indices, the Corpulence Index is calculated as **Actual Weight / Desirable Weight**. Since it compares observed weight to a standard reference weight for a given individual, it does not directly incorporate height into its mathematical formula, unlike the other indices listed. #### Analysis of Options: * **Quetelet Index (BMI):** This is the most common index, calculated as **Weight (kg) / Height (m²)**. It directly uses height. * **Broca Index:** Used for estimating "Ideal Body Weight" (IBW). The formula is **Height (cm) – 100**. It is entirely dependent on height. * **Ponderal Index (Rohrer's Index):** Often used in pediatrics and neonatology, calculated as **Weight (kg) / Height (m³)**. It incorporates height to the third power. * **Corpulence Index:** This is a ratio of **Actual Weight / Desirable Weight**. While "desirable weight" is originally derived from height-weight tables (like the Metropolitan Life Insurance tables), the index itself is a ratio of two weight values. #### High-Yield Clinical Pearls for NEET-PG: * **Lorentz’s Formula:** A more refined version of the Broca index to calculate IBW: * *Males:* Height (cm) – 100 – [(Height – 150) / 4] * *Females:* Height (cm) – 100 – [(Height – 150) / 2] * **Best Indicator of Abdominal Obesity:** Waist-to-Hip Ratio (WHR). A ratio **>0.9 in men** and **>0.85 in women** indicates upper body obesity. * **Waist Circumference:** A simple measurement where **>102 cm in men** and **>88 cm in women** signifies increased metabolic risk. * **Dugdale’s Index:** Weight / Height$^{1.6}$ (used in children).

Q: Riboflavin is an important water-soluble vitamin. Cereals and pulses are relatively good sources of Riboflavin. What is the most common lesion associated with Riboflavin deficiency, which can also be used as an index of the nutritional status of a group of children?

Angular stomatitis. **Explanation:** **Riboflavin (Vitamin B2)** is a crucial water-soluble vitamin that acts as a precursor for coenzymes FAD and FMN, which are essential for energy metabolism. **Why Angular Stomatitis is correct:** Riboflavin deficiency primarily manifests as **mucocutaneous lesions**. **Angular stomatitis** (fissuring and inflammation at the corners of the mouth) is the most characteristic clinical sign. In community medicine and public health surveys, angular stomatitis is frequently used as a **sensitive index of the nutritional status** of a population, particularly among school-aged children, as it reflects a chronic low intake of B-complex vitamins. Other associated signs include cheilosis, glossitis (magenta tongue), and nasolabial seborrhea. **Analysis of Incorrect Options:** * **B. Follicular Keratosis:** This is a hallmark of **Vitamin A deficiency** (Phrynoderma) or Vitamin C deficiency. It presents as "toad skin" due to hyperkeratosis of hair follicles. * **C. Diarrhea & D. Dementia:** These are two of the "4 Ds" characteristic of **Pellagra**, which is caused by a deficiency of **Niacin (Vitamin B3)**. The full triad/tetrad includes Dermatitis, Diarrhea, Dementia, and Death. **High-Yield NEET-PG Pearls:** * **Magenta Tongue:** Pathognomonic for Riboflavin deficiency. * **Cheilosis:** Swelling and fissuring of the lips. * **Corneal Vascularization:** An early ocular sign of Riboflavin deficiency. * **Source:** Germinating pulses and fermented foods are rich sources of Riboflavin. It is also highly sensitive to light (photolabile), which is why milk should not be stored in transparent glass bottles.

Q: Waterlow's classification is used for assessing which of the following?

Protein energy malnutrition. **Explanation:** **Waterlow’s classification** is a widely used method for assessing the severity of **Protein-Energy Malnutrition (PEM)** in children. Unlike the Gomez classification, which only considers weight-for-age, Waterlow’s system utilizes two distinct parameters to differentiate between acute and chronic malnutrition: 1. **Weight-for-Height:** Indicates "Wasting" (Acute malnutrition). 2. **Height-for-Age:** Indicates "Stunting" (Chronic malnutrition). By using these indices, clinicians can determine if a child is currently suffering from a deficit (wasted) or has suffered from long-term nutritional deprivation (stunted). **Analysis of Incorrect Options:** * **B. Low birth weight:** This is defined simply as a birth weight of less than 2.5 kg, regardless of gestational age. It is not assessed via Waterlow’s criteria. * **C. Xerophthalmia:** This refers to Vitamin A deficiency. Assessment involves the WHO clinical stages (X1A to X3B) and Bitot’s spots, not anthropometric indices. * **D. Nutritional anemia:** This is typically assessed via hemoglobin levels (e.g., <11 g/dL in children) and peripheral blood smears, not growth charts. **High-Yield Clinical Pearls for NEET-PG:** * **Wasting (Weight-for-Height):** Most sensitive indicator of **recent/acute** nutritional stress. * **Stunting (Height-for-Age):** Indicator of **long-term/chronic** malnutrition. * **Gomez Classification:** Uses **Weight-for-Age** only (Reference: 50th percentile of Harvard standards). * **Wellcome Trust Classification:** Uses Weight-for-Age + presence/absence of **Oedema** to differentiate Kwashiorkor from Marasmus. * **IAP Classification:** The most commonly used classification in India, based on Weight-for-Age.

Q: In Kesari dhal poisoning due to Lathyrus sativus, the active principle is:

beta-N-oxalyl-L--diaminopropionic acid (BOAA). ### Explanation **Correct Option: B. beta-N-oxalyl-L-α,β-diaminopropionic acid (BOAA)** Lathyrism is a clinical condition caused by the excessive consumption of **Kesari Dhal (*Lathyrus sativus*)**. The active toxic principle is **BOAA** (also known as **ODAP** - Oxalyldiaminopropionic acid). It acts as a potent **neurotoxin** and an excitatory analog of glutamate. It causes oxidative stress and damage to the upper motor neurons in the spinal cord, leading to **Neurolathyrism**, characterized by spastic paraplegia. **Analysis of Incorrect Options:** * **A. Pyrrolizidine:** These alkaloids are found in *Crotalaria* species and are associated with **Veno-occlusive disease (VOD)** of the liver, not lathyrism. * **C. Argemone oil:** This is the contaminant in mustard oil responsible for **Epidemic Dropsy**. The active toxin is **Sanguinarine**, which causes oxidative damage and widespread capillary leakage. * **D. Pilocarpine:** This is a parasympathomimetic alkaloid obtained from *Pilocarpus* plants. It is used medically to treat glaucoma and xerostomia; it is not related to food-based toxicological outbreaks. **High-Yield Clinical Pearls for NEET-PG:** * **Clinical Presentation:** Lathyrism presents as a sudden onset of **spastic paraparesis** with a characteristic **"Scissor Gait"** or "Crossing of legs." * **Stages:** It progresses through four stages: Non-stick stage → One-stick stage → Two-stick stage → Crawler stage. * **Prevention:** The toxin is water-soluble. Prevention involves **steeping** (soaking in hot water and draining) or **parboiling** the pulse to remove BOAA. * **Epidemiology:** It is often seen during droughts or famines when Kesari dhal (a hardy crop) becomes the staple diet.

Q: What device is used by health workers to assess the nutritional status of children under 5 years of age?

Shakir's tape. ### Explanation The correct answer is **Shakir’s tape**. **1. Why Shakir’s Tape is Correct:** Shakir’s tape is a simple, non-stretchable tape used to measure the **Mid-Upper Arm Circumference (MUAC)** in children aged 1 to 5 years. It is a color-coded screening tool designed for field use by health workers to quickly assess nutritional status: * **Green (>13.5 cm):** Satisfactory nutritional status. * **Yellow (12.5 – 13.5 cm):** Borderline/Possible malnutrition. * **Red (<12.5 cm):** Severe Malnutrition (specifically identifies wasting). * *Note:* In modern WHO guidelines, a MUAC **<11.5 cm** is the cutoff for Severe Acute Malnutrition (SAM). **2. Analysis of Incorrect Options:** * **A. Harpenden Callipers:** These are used to measure **skinfold thickness** (usually over the triceps) to estimate total body fat percentage. While used in nutrition research, they are not the primary tool for routine field screening by health workers. * **C. Orchidometer:** This is a clinical tool (a string of graded beads) used to measure **testicular volume**, primarily to assess pubertal development or hypogonadism. * **D. Infantometer:** This device is used to measure the **recumbent length** of infants and children under 2 years of age (or those unable to stand). While it assesses growth, Shakir’s tape is the specific tool for rapid nutritional screening via MUAC. **3. High-Yield Clinical Pearls for NEET-PG:** * **MUAC** is relatively constant between ages 1 and 5, making it an age-independent indicator of malnutrition in this bracket. * **Quac Stick:** Another field tool that uses a height-to-MUAC ratio to assess nutritional status. * **Road to Health Chart (Growth Chart):** Uses **Weight-for-Age** as the primary parameter for longitudinal monitoring. * **Stunting** (Chronic malnutrition) is measured by **Height-for-Age**, while **Wasting** (Acute malnutrition) is measured by **Weight-for-Height**.

Q: What are the recommended daily requirements of iron and folic acid for children aged 6 months to 10 years?

20 mg elemental iron and 100 microgram folic acid. **Explanation:** The correct answer is **Option A**. This dosage is based on the guidelines provided by the **Anemia Mukt Bharat (AMB)** strategy (formerly the National Iron Plus Initiative), which is a high-yield topic for NEET-PG. **1. Why Option A is correct:** For children aged **6 months to 59 months** (5 years), the recommendation is **20 mg of elemental iron and 100 mcg of folic acid** bi-weekly. For children aged **5 to 9 years**, the dosage remains the same (20 mg iron + 100 mcg folic acid) but is administered **weekly**. This dosage is designed to prevent nutritional anemia while remaining safe for pediatric physiology. **2. Why other options are incorrect:** * **Option B (100 mg Iron / 500 mcg Folic Acid):** This is the prophylactic dose for **Pregnant and Lactating women** (1 tablet daily for 180 days). * **Option C (60 mg Iron / 500 mcg Folic Acid):** This is the weekly dose recommended for **Adolescents (10–19 years)** and women of reproductive age. * **Option D:** This exceeds the standard prophylactic guidelines and is not part of the national public health schedule for any specific age group. **3. High-Yield Clinical Pearls for NEET-PG:** * **Formulation:** For children <5 years, iron is given as a **syrup** (1 ml = 20 mg iron); for 5–9 years, it is a **pink enteric-coated tablet**. * **Adolescents (WIFS):** Blue tablet (60 mg iron + 500 mcg folic acid). * **Pregnant Women:** Red tablet (100 mg iron + 500 mcg folic acid). * **Deworming:** Always remember the "Plus" in Iron Plus Initiative—**Albendazole** (400 mg) is given twice a year (bi-annually) for children >2 years to manage helminth-induced anemia.

Q: What is the extra energy needed per day during pregnancy?

350 Kcal. **Explanation:** The correct answer is **350 Kcal/day**. This value is based on the **ICMR-NIN (2020) guidelines**, which are the current gold standard for NEET-PG. **1. Why 350 Kcal is Correct:** During pregnancy, extra energy is required to support the growth of the fetus, placenta, and maternal tissues (uterus and breasts), as well as the increased basal metabolic rate (BMR). According to the latest ICMR recommendations, a pregnant woman requires an additional **+350 Kcal/day** over her pre-pregnancy sedentary/moderate/heavy work requirement. **2. Analysis of Incorrect Options:** * **150 Kcal:** This is significantly lower than the physiological requirement for any stage of pregnancy. * **200 Kcal:** This does not meet the metabolic demands of the second and third trimesters. * **300 Kcal:** This was the **previous ICMR recommendation** (prior to 2020). Many older textbooks still list this value, but for current exams, 350 Kcal is the updated standard. **3. High-Yield Clinical Pearls for NEET-PG:** * **Lactation:** The extra energy requirement is much higher during lactation: **+600 Kcal/day** (0–6 months) and **+520 Kcal/day** (6–12 months). * **Protein Requirement:** During pregnancy, the additional protein requirement is **+9.5 g/day** (2nd trimester) and **+22.0 g/day** (3rd trimester). * **Iron:** Requirement increases to **27 mg/day** during pregnancy. * **Calcium:** Requirement remains the same as a non-pregnant woman (**1000 mg/day**) according to 2020 guidelines, as absorption efficiency increases naturally.

Q: Under the National Programme for Prevention of Nutritional Blindness, what is the mega dose of vitamin A given to a child in the age group of 6-11 months?

1 Lakh IU. **Explanation:** The **National Vitamin A Prophylaxis Programme** (now part of the National Programme for Control of Blindness) aims to prevent Vitamin A deficiency (VAD) and its ocular manifestation, Xerophthalmia. Vitamin A is crucial for maintaining the integrity of epithelial tissues and the visual cycle. **Why 1 Lakh IU is correct:** According to the current operational guidelines in India, the first dose of Vitamin A is administered at **9 months of age** (along with the Measles/MR vaccine). For infants aged **6–11 months**, the recommended mega dose is **1 Lakh IU** (1 ml). This dosage is calculated to provide sufficient hepatic stores without causing toxicity in infants with lower body weight. **Analysis of Incorrect Options:** * **A. 50,000 IU:** This dose is insufficient for prophylaxis in this age group. However, it is used as a treatment dose for infants *under* 6 months of age in specific clinical scenarios (e.g., severe acute malnutrition). * **C. 1.5 Lakh IU:** This is not a standard dose used in the national schedule. * **D. 2 Lakh IU:** This is the standard dose for children aged **12–59 months**. Giving this high a dose to an infant under 12 months increases the risk of acute toxicity (bulging fontanelle, vomiting). **High-Yield Clinical Pearls for NEET-PG:** * **Total Doses:** A child receives a total of **9 doses** from 9 months to 5 years of age. * **Total Amount:** The cumulative dose over 5 years is **17 Lakh IU** (1 Lakh + 8 doses of 2 Lakh). * **Interval:** The minimum interval between two doses must be **6 months**. * **Target Group:** The program primarily targets children aged 6 months to 5 years. * **Clinical Sign:** The earliest clinical sign of Vitamin A deficiency is **Conjunctival Xerosis**, while the earliest symptom is **Night Blindness (Nyctalopia)**.

Question 1

Height is not included in which index of obesity?

Accepted Answer

Corpulence index

Answer

Quetelet index

Answer

Broca index

Answer

Ponderal index

Question 2

Riboflavin is an important water-soluble vitamin. Cereals and pulses are relatively good sources of Riboflavin. What is the most common lesion associated with Riboflavin deficiency, which can also be used as an index of the nutritional status of a group of children?

Accepted Answer

Angular stomatitis

Answer

Follicular keratosis

Answer

Diarrhea

Answer

Dementia

Question 3

Waterlow's classification is used for assessing which of the following?

Accepted Answer

Protein energy malnutrition

Answer

Low birth weight

Answer

Xerophthalmia

Answer

Nutritional anemia

Question 4

In Kesari dhal poisoning due to Lathyrus sativus, the active principle is:

Accepted Answer

beta-N-oxalyl-L--diaminopropionic acid (BOAA)

Answer

Pyrrolizidine

Answer

Argemone oil

Answer

Pilocarpine

Question 5

What device is used by health workers to assess the nutritional status of children under 5 years of age?

Accepted Answer

Shakir's tape

Answer

Harpenden callipers

Answer

Orchidometer

Answer

Infantometer

Question 6

What are the recommended daily requirements of iron and folic acid for children aged 6 months to 10 years?

Accepted Answer

20 mg elemental iron and 100 microgram folic acid

Answer

100 mg elemental iron and 500 microgram folic acid

Answer

60 mg elemental iron and 500 microgram folic acid

Answer

100 mg elemental iron and 1000 microgram folic acid

Question 7

What is the extra energy needed per day during pregnancy?

Accepted Answer

350 Kcal

Answer

150 Kcal

Answer

200 Kcal

Answer

300 Kcal

Question 8

The top line of the 'Road to Health' card typically represents which percentile for child growth?

Accepted Answer

50th percentile

Answer

3rd percentile

Answer

80th percentile

Answer

97th percentile

Question 9

Under the National Programme for Prevention of Nutritional Blindness, what is the mega dose of vitamin A given to a child in the age group of 6-11 months?

Accepted Answer

1 Lakh IU

Answer

50,000 IU

Answer

1.5 Lakh IU

Answer

2 Lakh IU

Question 10

A 40-year-old man notes a family history of colon carcinoma. He asks his physician how best to reduce his risk of developing this type of cancer. Which of the following dietary practices should he be advised to follow each day?

Accepted Answer

Eat more vegetables

Answer

Consume more beef

Answer

Drink a glass of red wine

Answer

Have a bowl of ice cream

Nutrition and Health — MCQs

Nutrition and Health — MCQs

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