Pediatric Nutrition Practice Questions

Q: Human milk contains more of which component compared to animal milk?

Sugar. **Explanation:** The composition of human milk is uniquely adapted to meet the developmental needs of a human infant, particularly for brain growth and energy. **1. Why Sugar is the Correct Answer:** Human milk contains a significantly higher concentration of **Lactose (Sugar)** compared to animal milk (e.g., Cow’s milk). Human milk contains approximately **7.0 g/dL** of lactose, whereas cow’s milk contains about **4.8 g/dL**. This high lactose content provides the necessary calories for rapid brain development and promotes the growth of *Lactobacillus bifidus* in the gut, which maintains an acidic environment and inhibits pathogenic bacteria. **2. Why Other Options are Incorrect:** * **Protein:** Human milk has much **lower** protein (1.1 g/dL) than cow’s milk (3.3 g/dL). The high protein in animal milk consists mainly of casein, which forms hard curds that are difficult for an infant to digest. * **Minerals:** Human milk has a **lower** mineral content (solute load) compared to animal milk. This is protective for the infant’s immature kidneys, preventing high renal solute load and dehydration. * **Fat:** While the total fat content is relatively similar (approx. 3.5–4.5 g/dL), human milk is richer in **essential fatty acids** (DHA/ARA) and contains **lipase**, which aids in better fat absorption compared to animal milk. **NEET-PG High-Yield Pearls:** * **Whey:Casein Ratio:** In human milk, it is **60:40** (easy to digest), while in cow’s milk, it is **20:80**. * **Iron:** Though both milks are low in iron, the **bioavailability** of iron in human milk is much higher (50% absorbed) compared to cow’s milk (10% absorbed). * **Protective Factors:** Human milk is rich in **IgA** (secretory) and **Lactoferrin**, which are absent in bovine milk.

Q: All of the following are true about 'ready to use therapeutic food' (RUTF) EXCEPT?

It is unpalatable and cannot be digested easily.. **Explanation:** Ready-to-Use Therapeutic Food (RUTF) is a revolutionary lipid-based nutrient supplement designed specifically for the community-based management of children with **Severe Acute Malnutrition (SAM)** who do not have medical complications. **Why Option C is the Correct Answer (The False Statement):** RUTF is specifically formulated to be **highly palatable** and **easily digestible**. Since children with SAM often have poor appetites, the paste is made to be sweet and tasty to encourage consumption. Furthermore, it has low osmolality, which prevents osmotic diarrhea and ensures it is gentle on the compromised gastrointestinal tract of a malnourished child. **Analysis of Other Options:** * **Option A:** RUTF is energy-dense. Standard formulations provide approximately **520–550 kcal per 100g**, which is essential for rapid catch-up growth. * **Option B:** The standard "CMAM" (Community-based Management of Acute Malnutrition) recipe typically consists of **peanut paste**, vegetable oil, milk powder, sugar, and a specific vitamin/mineral premix (CMV). * **Option D:** One of the primary advantages of RUTF is that it is **"ready to use."** It requires no cooking, no addition of water (reducing the risk of contamination), and has a long shelf life, making it ideal for home-based treatment without complex preparation. **High-Yield Clinical Pearls for NEET-PG:** * **Target Group:** Children with SAM (Weight-for-Height < -3SD or MUAC < 11.5 cm) without medical complications and with a positive "Appetite Test." * **Water Activity:** RUTF has very low water activity, which inhibits bacterial growth even without refrigeration. * **Iron Content:** It contains high levels of iron; therefore, additional iron supplements should not be given to children on RUTF to avoid toxicity. * **Comparison:** Unlike F-75 or F-100 formulas, RUTF can be stored at room temperature for several months.

Q: Fiaky paint appearance of skin is seen in which condition?

Kwashiorkor. **Explanation** **Correct Answer: D. Kwashiorkor** Kwashiorkor is a form of Protein-Energy Malnutrition (PEM) characterized by a severe deficiency of dietary protein despite adequate calorie intake. The **"Flaky Paint Dermatosis"** (also known as "Crazy Pavement Dermatosis") is a pathognomonic clinical feature. It occurs due to hyperkeratosis and hyperpigmentation followed by desquamation. The skin becomes dry, atrophic, and peels off in scales, resembling old, sun-baked paint peeling off a wall. This typically affects areas of friction or pressure, such as the buttocks and lower limbs. **Analysis of Incorrect Options:** * **A. Dermatitis:** This is a general term for skin inflammation. While Kwashiorkor involves skin changes, "flaky paint" is a specific morphological description not used for general dermatitis. * **B. Pellagra:** Caused by Vitamin B3 (Niacin) deficiency, it presents with a symmetrical, photosensitive rash. A classic sign is **Casal’s necklace** (around the neck), but it is described as "gloves and stockings" pigmentation rather than flaky paint. * **C. Marasmus:** This is caused by a total deficiency of both proteins and calories. The skin in Marasmus is typically thin, dry, and wrinkled (due to loss of subcutaneous fat), giving the child an **"Old Man/Monkey Face"** appearance, but it does not exhibit the flaky paint sign. **High-Yield Clinical Pearls for NEET-PG:** * **Kwashiorkor:** Edema (due to hypoalbuminemia), Flag sign (alternating bands of hair color), and fatty liver (due to decreased apolipoprotein synthesis). * **Marasmus:** Severe muscle wasting, no edema, and no fatty liver. * **Key Differentiator:** The presence of **edema** is the hallmark that distinguishes Kwashiorkor from Marasmus.

Q: What is the recommended daily zinc supplement dosage for a 12-month-old baby?

5 mg/day. **Explanation:** The correct answer is **5 mg/day**. Zinc is an essential micronutrient for cellular metabolism, immune function, and growth. In pediatric nutrition, the Recommended Dietary Allowance (RDA) for zinc varies significantly by age to balance physiological needs with the risk of toxicity. **Why 5 mg/day is correct:** According to the Indian Council of Medical Research (ICMR) and international guidelines (WHO/IOM), the RDA for zinc for infants aged **7 to 12 months** is **5 mg/day**. This dosage supports the rapid growth phase and compensates for the gradual decline of zinc concentration in breast milk after the first six months of life. **Analysis of Incorrect Options:** * **10 mg/day (Option B):** This is the recommended dosage for children aged 4–8 years. It is also the therapeutic dose used for infants *under* 6 months of age during an acute episode of diarrhea. * **20 mg/day (Option A):** This is the standard therapeutic dose for children *over* 6 months of age during **acute diarrhea** (given for 14 days), but it exceeds the daily nutritional requirement for a healthy 12-month-old. * **15 mg/day (Option D):** This value does not correspond to a standard RDA for any pediatric age group; it is closer to the adult male requirement (11–14 mg). **High-Yield Clinical Pearls for NEET-PG:** * **Diarrhea Management:** Zinc supplementation (20 mg for >6 months; 10 mg for <6 months) reduces the duration and severity of diarrhea and prevents future episodes for up to 3 months. * **Acrodermatitis Enteropathica:** An autosomal recessive disorder of zinc absorption characterized by the triad of alopecia, diarrhea, and vesiculobullous dermatitis (periorificial and acral). * **Deficiency Signs:** Growth retardation, delayed sexual maturation, impaired wound healing, and hypogeusia (reduced taste).

Q: What is the energy to protein ratio in human milk?

70. **Explanation:** The energy-to-protein ratio is a critical nutritional parameter in infant feeding, representing the amount of energy (kcal) provided per gram of protein. In mature human milk, the average energy content is **67–70 kcal/100 ml**, and the protein content is approximately **0.9–1.1 g/100 ml**. Dividing the energy by the protein content yields a ratio of approximately **70**. **Why Option C is Correct:** The calculation (70 kcal ÷ 1.1 g protein ≈ 63.6 to 70) aligns with the physiological needs of a term infant. This high ratio ensures that protein is spared for growth and tissue building rather than being oxidized for energy. **Analysis of Incorrect Options:** * **Option A (20):** This ratio is far too low for human milk. Such a ratio would imply an excessive protein load, which would exceed the infant's renal concentrating capacity and metabolic needs. * **Option B (55):** While closer, this ratio is more characteristic of certain specialized preterm formulas or transitional milk, where protein density is slightly higher to support rapid catch-up growth. * **Option D (80):** This ratio is higher than that of standard breast milk. A ratio this high would indicate a protein-deficient diet, potentially leading to poor weight gain and impaired neurodevelopment. **High-Yield Clinical Pearls for NEET-PG:** * **Protein Composition:** Human milk protein consists of **60% Whey** and **40% Casein** (60:40 ratio), making it easily digestible compared to cow’s milk (20:80). * **Predominant Protein:** The major whey protein in human milk is **Alpha-lactalbumin** (Cow's milk is Beta-lactoglobulin). * **Caloric Distribution:** In human milk, approximately 50% of calories come from fats, 43% from carbohydrates (lactose), and only 7% from proteins. * **Colostrum vs. Mature Milk:** Colostrum has higher protein (approx. 2.3g/100ml) but lower fat and energy (approx. 58 kcal/100ml) compared to mature milk.

Q: According to the Gomez classification of undernutrition, what is the median weight for age for severe malnutrition?

Less than 60%. The **Gomez Classification** is a historical but high-yield method used to assess the severity of protein-energy malnutrition (PEM) based on **Weight-for-Age**. It compares a child’s actual weight to the 50th percentile (median) of the standard weight for that specific age. ### Why Option C is Correct: According to the Gomez criteria, **Severe Malnutrition (Grade III)** is defined as a weight-for-age **less than 60%** of the expected median. At this stage, children are at high risk for metabolic complications and mortality. ### Analysis of Incorrect Options: * **Option A (90-110%):** This is considered **Normal** nutritional status. * **Option B (75% - 60%):** This range defines **Moderate Malnutrition (Grade II)**. * **Option D (Less than 50%):** While this is technically "less than 60%," it is not the standard cutoff defined by Gomez for the initiation of Grade III classification. ### High-Yield Summary Table: | Grade | Severity | Weight-for-Age (% of Median) | | :--- | :--- | :--- | | **Normal** | Normal | > 90% | | **Grade I** | Mild | 75% – 90% | | **Grade II** | Moderate | 60% – 75% | | **Grade III** | **Severe** | **< 60%** | ### Clinical Pearls for NEET-PG: 1. **Limitation:** The Gomez classification only uses weight-for-age; it does not account for height or the presence of edema (unlike the Wellcome Trust classification). 2. **Wellcome Trust Classification:** If a child is < 60% weight-for-age **and** has edema, they are classified as having **Marasmic-Kwashiorkor**. 3. **Current Standard:** While Gomez is frequently tested, the **WHO classification** (using Z-scores) is the current clinical gold standard, where Severe Acute Malnutrition (SAM) is defined as Weight-for-Height < -3 SD, mid-upper arm circumference (MUAC) < 11.5 cm, or the presence of nutritional edema.

Q: A four-year-old boy presents with swollen, bleeding gums, petechiae, and dry eyes. What is the most likely diagnosis?

Scurvy. ### Explanation **Correct Answer: C. Scurvy** **Medical Concept:** Scurvy is caused by a deficiency of **Vitamin C (Ascorbic Acid)**. Vitamin C is a vital cofactor for the enzyme *prolyl hydroxylase*, which is essential for the hydroxylation of proline and lysine residues during **collagen synthesis**. Defective collagen leads to weakened capillary walls and poor connective tissue support. * **Clinical Correlation:** The classic triad seen in this patient—**swollen, bleeding gums** (gingival hyperplasia), **petechiae/ecchymosis** (due to capillary fragility), and **dry eyes/skin**—are hallmark signs of impaired collagen integrity. In children, it often presents with "pseudoparalysis" due to painful subperiosteal hemorrhages. **Why Incorrect Options are Wrong:** * **A. Rickets:** Caused by Vitamin D deficiency. It presents with skeletal deformities like bow legs (genu varum), rachitic rosary, and craniotabes, rather than mucosal bleeding. * **B. Marasmus:** A form of severe protein-energy malnutrition (PEM) characterized by generalized wasting ("skin and bones" appearance) and loss of subcutaneous fat, but not specific hemorrhagic manifestations. * **C. Dehydration:** Presents with sunken eyes, dry mucous membranes, and poor skin turgor, but does not cause petechiae or bleeding gums. **High-Yield NEET-PG Pearls:** * **Radiological Signs of Scurvy:** Look for **Frankel’s line** (dense zone of provisional calcification), **Wimberger’s ring sign** (circular calcification around the epiphysis), and **Pelkan spurs**. * **The "4 H's" of Scurvy:** Hemorrhage, Hyperkeratosis, Hypochondriasis, and Hematologic abnormalities (Anemia). * **Dietary Source:** Vitamin C is heat-labile; boiling milk or overcooking vegetables destroys it. It is most abundant in citrus fruits and Amla (Indian Gooseberry).

Q: An infant presents with lethargy, frontal bossing, and bowing of legs. X-ray shows widening of epiphysis. What is the diagnosis?

Rickets. **Explanation:** The clinical presentation of **frontal bossing** (prominent forehead) and **bowing of legs** (genu varum) in an infant, combined with the classic radiological finding of **widening of the epiphysis**, is pathognomonic for **Rickets**. **1. Why Rickets is correct:** Rickets is a disease of the growing skeleton caused by a failure of osteoid mineralization at the growth plates. In children, this leads to an accumulation of unmineralized cartilage, causing the growth plate to expand (widening/cupping/fraying of the epiphysis). Clinical signs include craniotabes, rachitic rosary, and weight-bearing deformities like bowed legs. **2. Why other options are incorrect:** * **A. Osteomalacia:** This is the adult counterpart of Rickets. Since the epiphyseal plates are already closed in adults, you do not see widening of the epiphysis or frontal bossing; instead, it presents with diffuse bone pain and Looser’s zones (pseudofractures). * **B. Osteopetrosis:** Also known as "Marble Bone Disease," it is characterized by increased bone density (sclerotic bones) due to defective osteoclast function, not widening of the growth plates. * **C. Scurvy:** Caused by Vitamin C deficiency. While it involves bone changes, it typically presents with subperiosteal hemorrhage, "scorbutic rosary" (sharper than rachitic), and specific X-ray signs like the **Wimberger ring sign** and **Trummerfeld zone**, rather than epiphyseal widening. **High-Yield Clinical Pearls for NEET-PG:** * **Earliest sign of Rickets:** Craniotabes (softening of skull bones). * **Earliest radiological sign:** Fraying and cupping of the distal ends of the radius and ulna. * **Biochemical markers:** Low/Normal Calcium, Low Phosphate, and **Elevated Alkaline Phosphatase (ALP)**—ALP is the best marker for disease activity. * **Harrison’s Sulcus:** A horizontal groove along the lower border of the thorax due to the pull of the diaphragm on soft ribs.

Question 1

Human milk contains more of which component compared to animal milk?

Accepted Answer

Sugar

Answer

Fat

Answer

Protein

Answer

Mineral

Question 2

All of the following are true about 'ready to use therapeutic food' (RUTF) EXCEPT?

Accepted Answer

It is unpalatable and cannot be digested easily.

Answer

Each 100g contains approximately 540 kcal.

Answer

It contains peanut paste, milk solids, and oil.

Answer

It helps avoid cumbersome preparation of recipes at home.

Question 3

What is the initial intravenous fluid of choice for a severely malnourished child?

Accepted Answer

Dextrose

Answer

Albumin

Answer

Lactate

Answer

Thiamine

Question 4

Fiaky paint appearance of skin is seen in which condition?

Accepted Answer

Kwashiorkor

Answer

Dermatitis

Answer

Pellagra

Answer

Marasmus

Question 5

All the following are complications of formula feeding compared to human milk feeding except?

Accepted Answer

Vitamin K deficiency

Answer

Necrotizing enterocolitis

Answer

Otitis media

Answer

Hypocalcemia

Question 6

What is the recommended daily zinc supplement dosage for a 12-month-old baby?

Accepted Answer

5 mg/day

Answer

20 mg/day

Answer

10 mg/day

Answer

15 mg/day

Question 7

What is the energy to protein ratio in human milk?

Accepted Answer

70

Answer

20

Answer

55

Answer

80

Question 8

According to the Gomez classification of undernutrition, what is the median weight for age for severe malnutrition?

Accepted Answer

Less than 60%

Answer

Less than 90%

Answer

Less than 75%

Answer

Less than 50%

Question 9

A four-year-old boy presents with swollen, bleeding gums, petechiae, and dry eyes. What is the most likely diagnosis?

Accepted Answer

Scurvy

Answer

Rickets

Answer

Marasmus

Answer

Dehydration

Question 10

An infant presents with lethargy, frontal bossing, and bowing of legs. X-ray shows widening of epiphysis. What is the diagnosis?

Accepted Answer

Rickets

Answer

Osteomalacia

Answer

Osteopetrosis

Answer

Scurvy

Pediatric Nutrition — MCQs

Pediatric Nutrition — MCQs

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