Pediatric Nutrition — MCQs

Pediatric Nutrition Indian Medical PG Practice Questions and MCQs

Question 11: Colostrum contains more of _________?

A. Calcium (Ca)
B. Magnesium (Mg)
C. Iron (Fe)
D. Copper (Cu) (Correct Answer)

Explanation: ### Explanation Colostrum, the thick yellowish milk secreted during the first 3–5 days postpartum, is uniquely formulated to meet the immediate needs of a newborn. Compared to mature milk, colostrum is richer in proteins, fat-soluble vitamins (A, D, E, K), and specific minerals, most notably **Copper (Cu)** and **Zinc (Zn)**. **Why Copper is the Correct Answer:** The concentration of Copper in colostrum is significantly higher (approximately 2–3 times) than in mature milk. Copper is essential for the newborn as it acts as a cofactor for enzymes involved in iron metabolism, antioxidant defense (superoxide dismutase), and connective tissue formation. As lactation progresses, the concentration of Copper steadily declines. **Analysis of Incorrect Options:** * **A. Calcium (Ca) & B. Magnesium (Mg):** These minerals are actually found in **lower** concentrations in colostrum compared to mature milk. The levels of Calcium and Magnesium increase as the milk transitions to meet the skeletal growth demands of the older infant. * **C. Iron (Fe):** While the bioavailability of iron in breast milk is very high (50%), the absolute concentration of iron is relatively low in both colostrum and mature milk. There is no significant "surplus" of iron in colostrum compared to mature milk. **High-Yield Clinical Pearls for NEET-PG:** * **Protein Content:** Colostrum has a higher protein content (mostly **IgA** and lactoferrin) but **lower fat and lactose** than mature milk. * **Immunological Powerhouse:** It contains high concentrations of secretory IgA, providing "passive natural immunity" (the infant's first vaccine). * **Vitamin A:** Colostrum is exceptionally rich in Vitamin A, which gives it its characteristic yellow color and helps protect the intestinal mucosa. * **Energy Value:** Colostrum provides approximately **67 kcal/100 ml**, which is slightly less than or equal to mature milk, but it is more nutrient-dense in terms of protective factors.

Question 12: According to the IAP classification of Grade IV malnutrition, what is the weight-for-age of the standard in percentage?

A. 71-80%
B. 61-70%
C. 51-60%
D. < 50% (Correct Answer)

Explanation: ### Explanation The **IAP (Indian Academy of Pediatrics) Classification** is a widely used tool in India for grading Protein Energy Malnutrition (PEM) based on **weight-for-age**. It uses the 50th percentile of the Harvard standard as the reference (100%). **Why Option D is Correct:** According to the IAP classification, malnutrition is categorized into four grades based on the percentage of expected weight-for-age. **Grade IV malnutrition** is the most severe form, defined as a weight-for-age **less than 50%** of the standard. This indicates critical growth failure and requires urgent clinical intervention. **Analysis of Incorrect Options:** * **Option A (71-80%):** This represents **Grade I** (Mild) malnutrition. * **Option B (61-70%):** This represents **Grade II** (Moderate) malnutrition. * **Option C (51-60%):** This represents **Grade III** (Severe) malnutrition. * *Note: Normal nutritional status is considered > 80% of the weight-for-age.* **High-Yield Clinical Pearls for NEET-PG:** * **IAP vs. WHO:** While IAP uses weight-for-age, the **WHO classification** (currently preferred globally) uses **Z-scores** (Standard Deviations). Severe Acute Malnutrition (SAM) in WHO is defined as Weight-for-Height < -3 SD, presence of visible wasting, or nutritional edema. * **Gomez Classification:** Similar to IAP but uses different cut-offs: 1st Degree (75-90%), 2nd Degree (60-75%), and 3rd Degree (< 60%). * **Edema Rule:** In the IAP system, if a child has **pedal edema**, they are automatically classified as having **Grade III or IV** malnutrition (Kwashiorkor), regardless of their actual weight percentage.

Question 13: A 5-year-old male child presents with a history of recurrent infections and rashes, as shown in the image. Routine blood investigations reveal thrombocytopenia. Which of the following diagnoses is most likely?

A. Job syndrome
B. Wiskott Aldrich syndrome (Correct Answer)
C. Measles
D. Henoch Schonlein purpura

Explanation: ***Wiskott Aldrich syndrome*** - Classic **WAS triad** of **thrombocytopenia**, **eczematous rashes**, and **recurrent infections** (immunodeficiency) perfectly matches this presentation. - **X-linked inheritance** affecting males with characteristically **small platelet size** distinguishes it from other thrombocytopenic conditions. *Job syndrome* - Characterized by **recurrent skin and lung infections** with **eosinophilia** and elevated **IgE levels**. - **Normal platelet count** is typical, making thrombocytopenia inconsistent with this diagnosis. *Measles* - Acute viral illness with **Koplik spots**, **maculopapular rash**, and **fever** following a prodromal phase. - **Transient thrombocytopenia** may occur but recurrent infections and chronic eczematous rashes are not characteristic features. *Henoch Schonlein purpura* - **IgA-mediated vasculitis** presenting with **palpable purpura**, **arthritis**, and **glomerulonephritis**. - **Normal platelet count** is characteristic as purpura results from vasculitis, not thrombocytopenia.

Question 14: What are the daily caloric requirements for a one-year-old child in kcal/kg/day?

A. 92 kcal/kg/day
B. 102 kcal/kg/day
C. 112 kcal/kg/day
D. None of the above (Correct Answer)

Explanation: **Explanation** The daily caloric requirement for a child is determined by their age, metabolic rate, and growth velocity. According to the **ICMR (Indian Council of Medical Research)** and standard pediatric guidelines (Nelson), the energy requirement for a one-year-old child is approximately **80 kcal/kg/day**. **1. Why "None of the above" is correct:** The options provided (92, 102, and 112 kcal/kg/day) significantly overestimate the current recommended dietary allowances for a one-year-old. While older textbooks previously cited 100 kcal/kg/day for infants aged 0–12 months, modern guidelines have revised these figures downward to reflect more accurate metabolic data. For a child aged 1–2 years, the requirement is roughly 80 kcal/kg/day. **2. Analysis of Incorrect Options:** * **Option A (92 kcal/kg/day):** This is closer to the requirement for an infant aged 6–9 months (approx. 90–95 kcal/kg/day). * **Option B (102 kcal/kg/day):** This represents the requirement for a young infant (approx. 3–6 months). * **Option C (112 kcal/kg/day):** This is the high caloric requirement seen in the first 3 months of life (approx. 110–120 kcal/kg/day) when growth velocity is at its peak. **High-Yield Clinical Pearls for NEET-PG:** * **Caloric Rule of Thumb:** 100 kcal/kg (Infancy), 90 kcal/kg (1–3 years), 80 kcal/kg (4–6 years), and 70 kcal/kg (7–9 years). * **Fluid Requirement (Holliday-Segar Formula):** For a 10kg child (approx. 1 year old), the fluid requirement is 1000 ml/day (100 ml/kg). * **Growth Velocity:** Caloric needs per kg decrease as the child grows because the basal metabolic rate and growth rate slow down after the first year.

Question 15: Management of a child with severe protein-energy malnutrition (PEM) and loose stools includes which of the following?

A. Initiation of intravenous fluids immediately
B. Administration of 50ml of 10% glucose orally, if unconscious
C. Continuation of aggressive hydration even after dehydration resolves
D. Use of low-sodium oral rehydration solution (ORS) for rehydration, 5 ml/kg every 30 minutes for the first 2 hours (Correct Answer)

Explanation: **Explanation:** The management of dehydration in Severe Acute Malnutrition (SAM) differs significantly from standard pediatric protocols due to the physiological state of "reductive adaptation." **1. Why Option D is Correct:** Children with SAM have a high total body sodium but low serum sodium (due to the failure of the sodium-potassium pump) and are often potassium depleted. Standard WHO-ORS has a high sodium content (75 mmol/L), which can lead to sodium overload and heart failure in these children. Therefore, a **low-sodium ORS (ReSoMal)** is preferred. The rehydration process must be **slow and cautious**: 5 ml/kg every 30 minutes for the first 2 hours, followed by 5–10 ml/kg/hour for the next 4–10 hours. **2. Why Incorrect Options are Wrong:** * **Option A:** IV fluids are contraindicated in SAM unless the child is in **hypovolemic shock**. Over-enthusiastic IV fluid administration can easily lead to fluid overload and acute heart failure. * **Option B:** If a child is unconscious, oral administration is contraindicated due to the high risk of aspiration. In cases of hypoglycemia with altered consciousness, 10% dextrose should be given **intravenously** (5 ml/kg). * **Option C:** Aggressive hydration must be stopped as soon as dehydration is corrected to prevent "Refeeding Syndrome" and cardiac failure. **Clinical Pearls for NEET-PG:** * **ReSoMal Composition:** Lower Sodium (45 mmol/L), Higher Potassium (40 mmol/L), and added Zinc/Copper/Magnesium. * **Target:** In SAM, the goal is to rehydrate over 12 hours (vs. 4–6 hours in normal children). * **Monitoring:** Always monitor for signs of over-hydration (increased respiratory rate, gallop rhythm, or engorged neck veins) during fluid therapy.

Question 16: All of the following are signs of inadequate breast milk intake in a neonate, EXCEPT:

A. Weight loss of 5% from birth weight (Correct Answer)
B. Less than six noticeably wet diapers per 24 hours by day 3-4
C. Less than four stools per day by day 3-4
D. Nursing less than eight times per 24 hours

Explanation: **Explanation:** The correct answer is **A (Weight loss of 5% from birth weight)** because this is a **normal physiological finding** in a neonate, not a sign of inadequate intake. **1. Why Option A is the Correct Answer:** It is normal for term neonates to lose up to **7–10%** of their birth weight during the first week of life due to the excretion of excess extracellular fluid and low initial caloric intake. They typically regain their birth weight by **10–14 days** of age. Therefore, a 5% weight loss is physiological and does not indicate breastfeeding failure. **2. Analysis of Incorrect Options (Signs of Inadequate Intake):** * **Option B (Wet Diapers):** By day 4, a well-hydrated infant should have at least **6 or more** heavy, wet diapers per day. Fewer than this suggests dehydration or poor milk transfer. * **Option C (Stool Frequency):** After the passage of meconium, a neonate should have at least **3–4 yellow, seedy stools** daily by the end of the first week. Infrequent stooling is a sensitive indicator of low caloric intake. * **Option D (Nursing Frequency):** Newborns should nurse **8–12 times** in 24 hours. Nursing less than 8 times (infrequent feeding) often leads to poor weight gain and inadequate stimulation of the mother's milk supply. **High-Yield Clinical Pearls for NEET-PG:** * **Weight Gain Rule:** Once birth weight is regained, an infant should gain approximately **25–30 grams/day** for the first 3 months. * **Urate Crystals:** "Brick dust" spots (pink/orange) in the diaper are normal in the first 2 days but indicate dehydration if they persist beyond day 3. * **Best Indicator:** The most objective indicator of adequate milk intake in the long term is the **growth curve (weight gain).**

Question 17: Hypervitaminosis of which of the following vitamins will cause bony abnormalities?

A. Vitamin A (Correct Answer)
B. Vitamin D
C. Vitamin C
D. Vitamin E

Explanation: **Explanation:** **Vitamin A (Retinol)** toxicity, specifically chronic hypervitaminosis A, is a classic cause of skeletal abnormalities in children. Excessive intake leads to accelerated bone resorption and cortical thickening. The hallmark clinical features include **painful soft tissue swellings** over long bones and **hyperostosis** (excessive bone growth), particularly of the ulnar and metatarsal shafts. Radiologically, this manifests as subperiosteal new bone formation. Other systemic signs include increased intracranial pressure (pseudotumor cerebri), hepatosplenomegaly, and dry, desquamating skin. **Analysis of Incorrect Options:** * **Vitamin D:** While Vitamin D toxicity causes hypercalcemia, it primarily leads to soft tissue calcification (nephrocalcinosis, vascular calcification) and polyuria rather than structural bony hyperostosis. * **Vitamin C:** Deficiency (Scurvy) causes bony changes like subperiosteal hemorrhage and "Rosary beads," but hypervitaminosis C is generally non-toxic as it is water-soluble, though it may predispose to oxalate kidney stones. * **Vitamin E:** This is the least toxic fat-soluble vitamin. High doses are generally well-tolerated but may interfere with Vitamin K metabolism, leading to bleeding tendencies. **NEET-PG High-Yield Pearls:** * **Acute Vitamin A Toxicity:** Presents with "Bulging Fontanelle" in infants due to increased intracranial pressure. * **Chronic Vitamin A Toxicity:** Look for the triad of **Pruritus, Hepatomegaly, and Bony tenderness.** * **Differential Diagnosis:** Always differentiate Vitamin A-induced hyperostosis from **Caffey’s Disease** (Infantile Cortical Hyperostosis), which typically involves the mandible and occurs in younger infants (usually <6 months). Vitamin A toxicity rarely involves the mandible.

Question 18: Which indicator best reflects both acute and chronic malnutrition?

A. Low height-for-age
B. Low weight-for-height
C. Low height-for-weight
D. Low weight-for-age (Correct Answer)

Explanation: **Explanation:** In pediatric nutrition assessment, anthropometric indices are used to differentiate between different types of growth failure. **Weight-for-age** is the correct answer because it is a composite indicator. Since weight is sensitive to both recent weight loss (acute) and long-term growth failure (chronic), a low weight-for-age can reflect either **wasting, stunting, or a combination of both.** **Analysis of Options:** * **Option A (Low height-for-age):** This is the hallmark of **Stunting**. It reflects **chronic (long-term) malnutrition** or recurrent illness. It does not typically reflect acute nutritional changes because height does not decrease during short-term starvation. * **Option B (Low weight-for-height):** This is the hallmark of **Wasting**. It reflects **acute (short-term) malnutrition** or significant recent weight loss (e.g., due to diarrhea or famine). * **Option C (Low height-for-weight):** This is not a standard clinical index used in the WHO or IAP growth monitoring protocols. **High-Yield Clinical Pearls for NEET-PG:** 1. **Waterlow’s Classification:** * Wasting = (Observed Weight / Weight for height) × 100 * Stunting = (Observed Height / Height for age) × 100 2. **Gomez Classification:** Uses **Weight-for-age** to grade malnutrition (Grade I: 75-90%, Grade II: 60-75%, Grade III: <60%). 3. **Underweight:** Defined as weight-for-age < -2 SD from the WHO Child Growth Standards median. 4. **Best Indicator of Recovery:** Weight-for-height is the most sensitive indicator to monitor the effectiveness of nutritional rehabilitation programs.

Question 19: As compared to cow's milk, human milk has:

A. More proteins
B. Less carbohydrates
C. More iron (Correct Answer)
D. Less of vitamins

Explanation: **Explanation:** The correct answer is **C. More iron**. While the absolute quantity of iron in cow's milk (0.5 mg/L) is slightly higher than in human milk (0.3 mg/L), the **bioavailability** of iron in human milk is significantly superior. Approximately **50% of iron in breast milk is absorbed**, compared to only 10% from cow's milk. This is due to the presence of high levels of Vitamin C and lactose in human milk, which facilitate absorption. **Analysis of Options:** * **A. More proteins:** Incorrect. Cow’s milk contains significantly more protein (~3.3g/dL) than human milk (~1.1g/dL). Furthermore, human milk is **whey-dominant** (60:40 ratio), making it easier to digest, whereas cow’s milk is **casein-dominant** (20:80 ratio), which forms hard curds in the infant's stomach. * **B. Less carbohydrates:** Incorrect. Human milk contains **more lactose** (7g/dL) compared to cow’s milk (4.5g/dL). Lactose provides energy and promotes the growth of *Lactobacillus bifidus*. * **D. Less of vitamins:** Incorrect. Human milk generally contains adequate vitamins (except Vitamin K and D) for the infant. Cow’s milk is notoriously deficient in Vitamin C and Vitamin E. **High-Yield Facts for NEET-PG:** 1. **Energy Content:** Both human and cow's milk provide approximately **67 kcal/100ml**. 2. **Minerals:** Cow’s milk has higher sodium, potassium, and calcium, which can lead to a high **renal solute load** in neonates. 3. **Protective Factors:** Human milk contains **IgA, Lysozyme, and Lactoferrin** (which sequesters iron to inhibit bacterial growth), which are absent in cow's milk. 4. **Fat:** Human milk contains more **essential fatty acids** and lipase, aiding better fat digestion.

Question 20: The symptoms of dietary deficiency of niacin, which results in pellagra, will be less severe if the diet has a high content of which amino acid?

A. Tryptophan (Correct Answer)
B. Tyrosine
C. Thymine
D. Thiamine

Explanation: **Explanation:** The correct answer is **Tryptophan**. **Medical Concept:** Pellagra is caused by a deficiency of **Niacin (Vitamin B3)**. However, the human body can synthesize niacin endogenously from the essential amino acid **Tryptophan**. This metabolic conversion occurs primarily in the liver, where approximately **60 mg of dietary tryptophan yields 1 mg of niacin**. This process requires Vitamin B6 (Pyridoxine), Vitamin B2 (Riboflavin), and Iron as cofactors. Therefore, a diet rich in tryptophan can compensate for low dietary niacin intake, preventing or reducing the severity of pellagra. **Analysis of Incorrect Options:** * **Tyrosine:** This is a precursor for catecholamines (dopamine, epinephrine, norepinephrine), thyroid hormones, and melanin, but it plays no role in niacin synthesis. * **Thymine:** This is a pyrimidine nitrogenous base found in DNA, not an amino acid. * **Thiamine:** This is Vitamin B1. While a B-complex vitamin, its deficiency causes Beriberi or Wernicke-Korsakoff syndrome, not pellagra. **High-Yield Clinical Pearls for NEET-PG:** * **The 4 D’s of Pellagra:** Dermatitis (photosensitive, "Casal’s necklace"), Diarrhea, Dementia, and Death. * **Corn/Maize-based diets:** Pellagra is common in populations consuming maize as a staple because maize is low in tryptophan and its niacin is in a bound, unabsorbable form (niacytin). * **Hartnup Disease:** An autosomal recessive disorder involving defective neutral amino acid transport (including tryptophan) in the gut and kidneys, often presenting with pellagra-like symptoms. * **Carcinoid Syndrome:** Can lead to secondary niacin deficiency because tryptophan is diverted to overproduce Serotonin (5-HT).

Practice by Chapter

Breastfeeding

Practice Questions

Infant Formula Feeding

Practice Questions

Complementary Feeding

Practice Questions

Nutritional Requirements by Age

Practice Questions

Malnutrition and Failure to Thrive

Practice Questions

Obesity in Children

Practice Questions

Vitamin Deficiencies

Practice Questions

Mineral Deficiencies

Practice Questions

Food Allergies and Intolerances

Practice Questions

Nutritional Management of Chronic Diseases

Practice Questions

Eating Disorders

Practice Questions

Parenteral and Enteral Nutrition

Practice Questions

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