Pediatric Nutrition — MCQs

Pediatric Nutrition Indian Medical PG Practice Questions and MCQs

Question 191: Wind Swept Deformity is seen in which of the following conditions?

A. Scurvy
B. Rickets (Correct Answer)
C. Achondroplasia
D. Osteoporosis

Explanation: **Explanation:** **Windswept deformity** is a classic clinical sign of **Rickets**, characterized by the combination of **genu valgum** (knock-knee) in one leg and **genu varum** (bow-leg) in the other. This occurs because rickets leads to defective mineralization of the osteoid matrix at the growth plates, resulting in soft, "plastic" bones. Under the stress of weight-bearing and gravity, these softened long bones undergo progressive mechanical deformation, appearing as if they have been "swept" by the wind to one side. **Analysis of Options:** * **Scurvy (Vitamin C deficiency):** Characterized by defective collagen synthesis. Clinical features include subperiosteal hemorrhages, "scorbutic rosary" (angular), and pseudoparalysis, but not windswept deformities. * **Achondroplasia:** A genetic disorder of endochondral ossification leading to dwarfism. While it features genu varum (bowing), the classic "windswept" presentation is not a hallmark. * **Osteoporosis:** Involves decreased bone mass with normal mineralization. It typically presents with pathological fractures (vertebral/hip) in adults rather than the plastic bowing deformities seen in the growing skeletons of children. **High-Yield Clinical Pearls for NEET-PG:** * **Rachitic Rosary:** Found in Rickets; characterized by blunt, rounded swellings at the costochondral junctions (unlike the sharp, angular rosary in Scurvy). * **Harrison’s Sulcus:** A horizontal groove along the lower border of the thorax corresponding to the insertion of the diaphragm. * **Craniotabes:** Softening of the skull bones (earliest sign of rickets). * **Radiological Signs:** Cupping, splaying, and fraying of the metaphysis (best seen at the distal radius and ulna).

Question 192: Which of the following findings are NOT seen in Kwashiorkor?

A. Apathy
B. Flaky paint dermatosis (Correct Answer)
C. Baggy pants appearance
D. Increased transaminases

Explanation: **Explanation:** The question asks for the finding **NOT** seen in Kwashiorkor. However, there is a technical discrepancy in the provided key: **Flaky paint dermatosis** is a classic hallmark of Kwashiorkor. The correct answer to "NOT seen in Kwashiorkor" is actually **Option C: Baggy pants appearance.** **1. Why "Baggy pants appearance" is the correct answer (i.e., not seen in Kwashiorkor):** The "baggy pants" appearance refers to loose, hanging skin folds in the gluteal region caused by the loss of subcutaneous fat and severe muscle wasting. This is a pathognomonic feature of **Marasmus**, not Kwashiorkor. In Kwashiorkor, the presence of edema often masks muscle wasting, and subcutaneous fat is relatively preserved. **2. Analysis of other options (Features of Kwashiorkor):** * **Apathy (Option A):** Children with Kwashiorkor are typically lethargic, irritable, and profoundly apathetic. * **Flaky paint dermatosis (Option B):** Also known as "crazy paving" dermatosis, this involves hyperpigmentation and desquamation of the skin, primarily in areas of friction. It is a hallmark of Kwashiorkor. * **Increased transaminases (Option D):** Kwashiorkor is characterized by a **fatty liver** (steatosis) due to decreased synthesis of Apolipoprotein B-100, leading to impaired export of triglycerides. This hepatic stress often results in elevated liver enzymes (ALT/AST). **High-Yield Clinical Pearls for NEET-PG:** * **Kwashiorkor:** Protein deficiency > Calorie deficiency. Key features: **Edema** (essential for diagnosis), Moon facies, Flag sign (banded hair discoloration), and Hepatomegaly. * **Marasmus:** Calorie deficiency > Protein deficiency. Key features: Severe wasting, **Old man/Monkey facies**, and Baggy pants appearance. * **Edema in Kwashiorkor:** Primarily due to hypoalbuminemia (decreased oncotic pressure) and oxidative stress.

Question 193: What is the protein content of F-100 diet?

A. 0.9 g/100 mL
B. 1.1 g/100 mL
C. 1.2 g/100 mL
D. 2.9 g/100 mL (Correct Answer)

Explanation: **Explanation:** The **F-100 diet** is a therapeutic milk formula specifically designed for the **Rehabilitation Phase** (Phase 2) of management in children with Severe Acute Malnutrition (SAM). The primary goal of this phase is rapid weight gain (catch-up growth), which requires a high-calorie and high-protein intake. * **Correct Option (D):** F-100 contains **2.9 g of protein** and **100 kcal** per 100 mL. This high protein-to-energy ratio is essential to support the synthesis of new lean body mass once the child’s metabolic processes have stabilized and infections are under control. **Analysis of Incorrect Options:** * **Option A (0.9 g/100 mL):** This is the approximate protein content of **F-75**, the formula used in the **Stabilization Phase** (Phase 1). F-75 is designed to maintain basic physiological processes without overwhelming the fragile metabolism; it contains 0.9 g protein and 75 kcal per 100 mL. * **Options B & C (1.1 – 1.2 g/100 mL):** These values are closer to the protein content of standard **mature human breast milk** (approx. 1.1 g/100 mL) or standard infant formulas, which are insufficient for the rapid catch-up growth required in SAM rehabilitation. **High-Yield Clinical Pearls for NEET-PG:** * **F-75 vs. F-100:** Remember the "75" and "100" refer to the **kcal per 100 mL**. * **Transition:** Move from F-75 to F-100 only when the child regains appetite and edema starts to disappear (usually after 2–7 days). * **Electrolytes:** Both formulas are low in Sodium and high in Potassium and Magnesium, reflecting the intracellular electrolyte depletion seen in SAM. * **Iron:** F-75 contains **no iron** (to avoid promoting bacterial growth during acute infection), whereas iron is added during the F-100/Rehabilitation phase.

Question 194: Which of the following statements is true regarding the storage of expressed breast milk (EBM)?

A. Expressed breast milk (EBM) can be stored at room temperature for about 6 hours and in the refrigerator for 24 hours. (Correct Answer)
B. Expressed breast milk (EBM) can be stored at room temperature for about 24 hours and in the refrigerator for 6 days.
C. Expressed breast milk (EBM) can be stored at room temperature for about 18 hours and in the refrigerator for 1 month.
D. Expressed breast milk (EBM) can be stored at room temperature for about 6 hours and in the refrigerator for 6 days.

Explanation: ### Explanation **Correct Answer: A** **1. Understanding the Concept** Expressed Breast Milk (EBM) is a biological fluid rich in nutrients, enzymes, and live cells. Its storage is governed by the need to prevent bacterial overgrowth while preserving its immunological properties. According to standard pediatric guidelines (including IAP and WHO), EBM is remarkably stable due to its antibacterial components (like lysozyme and lactoferrin). At a **room temperature** of up to 25°C, it remains safe for **6 to 8 hours**. When stored in a **refrigerator** (4°C), it is ideally used within **24 hours** in clinical/hospital settings to ensure maximum nutrient integrity, though some guidelines allow up to 48 hours in domestic settings. **2. Analysis of Incorrect Options** * **Option B & C:** These options suggest room temperature storage for 18–24 hours. This is incorrect as prolonged exposure to warmth leads to rapid multiplication of skin flora (Staphylococci) and degradation of milk lipids. * **Option D:** While EBM can technically last longer than 24 hours in a refrigerator in a home setting, for exam purposes and clinical safety (especially for neonates), the standard "6 hours/24 hours" rule is the most widely accepted benchmark in Indian medical curriculum. **3. High-Yield Clinical Pearls for NEET-PG** * **Deep Freezer Storage:** EBM can be stored at **-20°C for up to 3 to 6 months**. * **Thawing:** Never microwave EBM as it creates "hot spots" and destroys heat-labile antibodies. Thaw it overnight in the refrigerator or by placing the container in warm water. * **Colostrum:** It is the "first vaccine" for the baby, rich in **IgA** and growth factors. * **Feeding:** EBM should be fed to the infant using a **cup and spoon (paladai)** rather than a bottle to avoid nipple confusion.

Question 195: A 4-year-old child presents to the Pediatric OPD with a complaint of inability to see at night for the last few days. The pediatrician suspects a vitamin deficiency. If clinical signs of vitamin A deficiency occur, what would be the first clinical sign?

A. Retinal detachment
B. Bitot spot
C. Conjunctival xerosis (Correct Answer)
D. Corneal xerosis

Explanation: **Explanation:** Vitamin A (Retinol) is essential for maintaining the integrity of epithelial surfaces and the phototransduction cycle. In Vitamin A deficiency (VAD), the earliest functional symptom is **Night Blindness (Nyctalopia)**; however, the question asks for the **first clinical sign**. **Why C is correct:** **Conjunctival xerosis (X1B)** is the first objective clinical sign of Vitamin A deficiency. It is characterized by the conjunctiva becoming dry, lusterless, and non-wettable, often appearing "muddy" or wrinkled. This occurs due to the loss of goblet cells and keratinization of the conjunctival epithelium. **Analysis of Incorrect Options:** * **A. Retinal detachment:** This is not a feature of Vitamin A deficiency. VAD affects the retina via **Xerophthalmic Fundus (XF)** (pale spots), but not detachment. * **B. Bitot spot (X1B):** These are triangular, foamy, silvery-white patches on the bulbar conjunctiva. While highly characteristic of VAD, they appear **after** conjunctival xerosis has already initiated. * **D. Corneal xerosis (X2):** This represents a more advanced stage where the cornea becomes hazy and dry. It is a medical emergency as it precedes keratomalacia (corneal melting). **NEET-PG High-Yield Pearls (WHO Classification of Xerophthalmia):** * **X1A:** Night Blindness (Earliest **symptom**) * **X1B:** Conjunctival Xerosis (Earliest **sign**) * **X2:** Bitot’s Spots * **X3:** Corneal Xerosis * **X3A/X3B:** Keratomalacia (<1/3 or >1/3 of corneal surface) * **Treatment:** For a 4-year-old (>1 year), the dose is **200,000 IU** orally on days 0, 1, and 14. (Half dose for 6–12 months; 50,000 IU for <6 months).

Question 196: Human milk contains more of which component compared to animal milk?

A. Sugar (Correct Answer)
B. Fat
C. Protein
D. Mineral

Explanation: **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.

Question 197: Endemic cardiomyopathy in children is linked to the deficiency of which trace element?

A. Zinc
B. Cobalt
C. Selenium (Correct Answer)
D. Chromium

Explanation: **Explanation:** The correct answer is **Selenium**. Endemic cardiomyopathy, specifically known as **Keshan Disease**, is a congestive cardiomyopathy primarily affecting children and young women in regions of China where the soil is severely deficient in selenium. **Why Selenium is Correct:** Selenium is a vital component of the enzyme **Glutathione Peroxidase**, which protects cardiomyocytes from oxidative damage by neutralizing free radicals. In its absence, oxidative stress leads to myocardial necrosis and fibrosis. While selenium deficiency is the primary trigger, it is often associated with a secondary viral trigger (like Coxsackievirus B). **Why Other Options are Incorrect:** * **Zinc:** Deficiency typically presents as **Acrodermatitis Enteropathica** (periorificial rashes), growth retardation, impaired wound healing, and immune dysfunction, rather than cardiomyopathy. * **Cobalt:** While cobalt toxicity can cause "Beer-drinker's cardiomyopathy," its deficiency is not linked to endemic heart disease. Cobalt is a core component of Vitamin B12. * **Chromium:** Deficiency is rare but is associated with **impaired glucose tolerance** (insulin resistance) and peripheral neuropathy, as chromium enhances insulin action. **High-Yield Clinical Pearls for NEET-PG:** * **Keshan Disease:** Selenium deficiency + Cardiomyopathy. * **Kashin-Beck Disease:** Selenium deficiency + Osteoarthropathy (cartilage degeneration). * **Total Parenteral Nutrition (TPN):** Long-term TPN without supplementation is a common modern cause of selenium deficiency. * **Glutathione Peroxidase:** The key antioxidant enzyme requiring Selenium as a cofactor.

Question 198: All of the following are true about 'ready to use therapeutic food' (RUTF) EXCEPT?

A. Each 100g contains approximately 540 kcal.
B. It contains peanut paste, milk solids, and oil.
C. It is unpalatable and cannot be digested easily. (Correct Answer)
D. It helps avoid cumbersome preparation of recipes at home.

Explanation: **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.

Question 199: What defines second-degree undernutrition?

A. Weight below 50% of the Harvard standard
B. Weight below 60% of the Harvard standard
C. Weight between 60% and 81% of the Harvard standard
D. Weight between 60% and 71% of the Harvard standard (Correct Answer)

Explanation: This question pertains to the **Gomez Classification**, a historical but high-yield method used to categorize Protein-Energy Malnutrition (PEM) based on weight-for-age compared to the **Harvard Standard** (50th percentile). ### **Explanation of the Correct Answer** The Gomez classification defines the severity of undernutrition by calculating the percentage of expected weight for a specific age. **Second-degree (Moderate) undernutrition** is defined as a weight-for-age between **60% and 70% (or 71%)** of the standard. This indicates a significant deficit in body mass, requiring targeted nutritional intervention to prevent progression to severe wasting. ### **Analysis of Incorrect Options** * **Option A & B:** Weight below 50% or 60% represents **Third-degree (Severe) undernutrition**. In the Gomez system, any value below 60% is considered severe malnutrition, often associated with clinical marasmus or kwashiorkor. * **Option C:** The range of 60% to 81% is too broad. While 71% to 80% (or 90% in some variations) represents **First-degree (Mild) undernutrition**, the 60-71% bracket specifically isolates the second degree. ### **High-Yield Clinical Pearls for NEET-PG** * **Gomez Classification Grades:** * **Normal:** >90% of Harvard Standard * **Grade I (Mild):** 76–90% * **Grade II (Moderate):** 61–75% (Note: Exam options often use 60-71% or 60-75% interchangeably). * **Grade III (Severe):** <60% * **IAP Classification:** The Indian Academy of Pediatrics uses a similar weight-for-age scale: Grade I (71-80%), Grade II (61-70%), Grade III (51-60%), and Grade IV (<50%). * **Current Standard:** While Gomez is frequently tested, modern practice relies on **WHO Z-scores** (Weight-for-height) to define Wasting (Moderate Acute Malnutrition: -2 to -3 SD; Severe Acute Malnutrition: < -3 SD).

Question 200: What is the initial intravenous fluid of choice for a severely malnourished child?

A. Dextrose (Correct Answer)
B. Albumin
C. Lactate
D. Thiamine

Explanation: **Explanation:** In a child with Severe Acute Malnutrition (SAM), the metabolic priority is managing life-threatening complications like hypoglycemia and hypothermia. According to WHO guidelines, the initial intravenous fluid of choice—specifically when managing hypoglycemia or during the stabilization phase—is **10% Dextrose**. **Why Dextrose is Correct:** Children with SAM have very low glycogen stores and impaired gluconeogenesis. They are highly susceptible to **hypoglycemia** (Blood glucose <54 mg/dL), which is often asymptomatic but fatal. If the child is conscious, oral/nasogastric boluses are preferred; however, if the child is lethargic or unconscious, an immediate IV bolus of **5 ml/kg of 10% Dextrose** is the standard of care to restore cerebral glucose supply. **Why other options are incorrect:** * **Albumin:** While SAM children often have hypoalbuminemia (especially in Kwashiorkor), IV albumin is not used for initial resuscitation as it can precipitate heart failure due to fluid overload in a fragile myocardium. * **Lactate (Ringer’s Lactate):** While used for shock, it is not the "initial" fluid for the metabolic stabilization of glucose. Furthermore, standard RL is avoided in SAM unless the child is in true shock, as it contains high sodium; **half-strength Darrow’s solution with 5% Dextrose** is preferred for dehydration. * **Thiamine:** While Thiamine is essential to prevent Wernicke’s encephalopathy during refeeding, it is a vitamin supplement, not an intravenous resuscitation fluid. **Clinical Pearls for NEET-PG:** * **The "Rule of 10":** Use 10% Dextrose for hypoglycemia. * **Avoid Boluses:** In SAM, avoid rapid IV fluid boluses unless the child is in shock, as they are prone to **congestive heart failure**. * **Refeeding Syndrome:** Characterized by Hypophosphatemia, Hypokalemia, and Hypomagnesemia. * **Target:** The first phase of management (Stabilization) lasts 1–7 days and focuses on treating the "10 steps," starting with hypoglycemia.

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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