Pediatric Nutrition Practice Questions

Q: Which of the following statements is FALSE regarding complications of protein-energy malnutrition?

Hyperglycemia. In Protein-Energy Malnutrition (PEM), specifically in severe cases like Kwashiorkor and Marasmus, the body undergoes significant metabolic and physiological adaptations. **Why Hyperglycemia is FALSE:** The correct answer is **Hyperglycemia** because children with PEM are actually prone to **Hypoglycemia** (blood glucose <54 mg/dL). This occurs due to exhausted glycogen stores, impaired gluconeogenesis in a damaged liver, and concomitant infections. Hyperglycemia is not a feature of PEM; rather, maintaining blood glucose is a critical priority in the initial phase of management. **Analysis of Incorrect Options:** * **Hypothermia:** Malnourished children have a high surface-area-to-volume ratio, loss of insulating subcutaneous fat, and a low metabolic rate, making them highly susceptible to hypothermia (rectal temp <35.5°C). * **Septic Shock:** PEM is an immunocompromised state. The usual signs of infection (like fever) are often absent (afebrile bacteremia). Dehydration and infection frequently lead to septic shock, which is a leading cause of mortality. * **Electrolyte Imbalance:** PEM is characterized by "Shrunken Cell Syndrome." There is a total body deficit of **Potassium and Magnesium**, while there is an excess of total body **Sodium** (though serum sodium may appear low due to intracellular shift and edema). **High-Yield Clinical Pearls for NEET-PG:** * **The "Rule of 10":** WHO guidelines for SAM (Severe Acute Malnutrition) management include 10 steps, divided into Initial Stabilization (Days 1-2), Rehabilitation (Weeks 2-6), and Follow-up. * **Refeeding Syndrome:** Occurs due to rapid initiation of feeding, leading to a shift of electrolytes (Potassium, Magnesium, and **Phosphate**) into cells, potentially causing cardiac failure. * **Iron Supplementation:** Never give iron in the initial stabilization phase as it can promote bacterial growth and oxidative stress; it is started only in the rehabilitation phase.

Q: Breast milk can be stored in a refrigerator for up to how long without spoiling?

4 days. **Explanation:** The storage of breast milk is a high-yield topic in Pediatric Nutrition, focusing on maintaining the milk's nutritional integrity and preventing bacterial overgrowth. According to the standard guidelines (AAP and CDC), **freshly expressed breast milk can be stored in a refrigerator (at 4°C or 39.2°F) for up to 4 days.** **Why Option C is correct:** At refrigerator temperatures, the growth of commensal and pathogenic bacteria is significantly slowed while the immunological properties (like IgA and lysozyme) and macronutrients remain stable. While milk is best used within 3 days for optimal quality, it remains safe and bacteriologically stable for up to 4 days. **Analysis of Incorrect Options:** * **A. 8 hours:** This is the maximum duration for storage at **room temperature** (ideally 4–6 hours, but up to 8 hours in very clean conditions). * **B. 24 hours:** This is the limit for breast milk that was previously **frozen and then thawed** in the refrigerator. It should not be refrozen. * **D. 10 days:** This exceeds the safety limit for refrigeration. For storage longer than 4 days, milk must be kept in a **freezer**. **NEET-PG High-Yield Clinical Pearls:** * **Room Temperature (up to 25°C):** 4–6 hours. * **Refrigerator (4°C):** Up to 4 days. * **Deep Freezer (-18°C or colder):** Up to 6–12 months (6 months is optimal). * **Thawing:** Never microwave breast milk (destroys antibodies and creates "hot spots"). Thaw it overnight in the fridge or under warm running water. * **Colostrum:** High in protein and IgA; transitional milk appears at 4–10 days; mature milk after 15 days.

Q: What is true about foremilk and hind milk?

Hind milk helps relieve hunger.. Breast milk composition changes during a single feed, transitioning from **foremilk** to **hind milk**. Understanding this distinction is crucial for counseling mothers on breastfeeding techniques. ### **Explanation of the Correct Option** * **Option B (Correct):** **Hind milk** is the milk secreted towards the end of a feed. It is significantly **richer in fats** compared to foremilk. Because fat provides high caloric density, hind milk is responsible for providing satiety and **relieving hunger** in the infant. It is essential for adequate weight gain. ### **Explanation of Incorrect Options** * **Option A & C:** **Foremilk** is the milk secreted at the beginning of a feed. It is watery and **high in lactose** and proteins but low in fat. Its primary physiological role is to **quench the infant's thirst**, not relieve hunger or provide high fat. * **Option D:** While hind milk contains proteins, its defining characteristic is its high fat content. The protein concentration in breast milk remains relatively stable throughout the feed; it is the fat concentration that increases four to five-fold from the start to the end of the session. ### **NEET-PG High-Yield Pearls** * **The "Rule of 15":** To ensure the baby receives enough hind milk, mothers should be advised to feed from one breast for at least 15–20 minutes before switching. * **Colostrum:** Secreted in the first 2–3 days; rich in IgA, lactoferrin, and WBCs (the "first immunization"). * **Energy Value:** Breast milk provides approximately **67 kcal/100 ml**. * **Protein Ratio:** Mature breast milk has a Whey:Casein ratio of **60:40**, making it easier to digest than cow's milk (20:80).

Q: A child with proven vitamin A deficiency presents with clouding of the cornea. What is the appropriate treatment?

Intramuscular injection of vitamin A 50,000 IU once. **Explanation:** The clinical presentation of **corneal clouding** (keratomalacia) indicates severe, sight-threatening Vitamin A deficiency (Xerophthalmia stage X3). This is a medical emergency requiring immediate, high-dose therapy to prevent permanent blindness. **Why Option D is Correct:** According to WHO and IAP guidelines, the management of severe Vitamin A deficiency with corneal involvement requires an immediate dose of **50,000 IU to 100,000 IU** of Vitamin A. While oral administration is generally preferred, **Intramuscular (IM) injection** (using water-miscible Vitamin A) is specifically indicated when there is corneal clouding, severe malabsorption, or persistent vomiting, as it ensures rapid systemic availability to save the ocular tissues. **Why Other Options are Incorrect:** * **Options A & B:** 100 IU and 1,000 IU are grossly inadequate. These doses are closer to daily RDA (approx. 1,300–2,000 IU) and cannot treat clinical xerophthalmia. * **Option C:** 5,000 IU is insufficient for therapeutic reversal of corneal changes. Therapeutic doses for children >1 year are typically 200,000 IU, and for infants 12 months: 200,000 IU 3. **First Sign vs. First Symptom:** The first *symptom* is Night Blindness (X1A); the first *sign* is Conjunctival Xerosis (X1B). 4. **Bitot’s Spots (X2):** These are triangular, foamy deposits on the bulbar conjunctiva; they are reversible with treatment.

Q: Which anthropometric parameter is common to both acute and chronic malnutrition?

Weight for age. **Explanation:** In pediatric nutrition, anthropometric indices are used to differentiate between different types of growth failure. The correct answer is **Weight-for-age (WFA)** because it is a composite indicator. 1. **Why Weight-for-age is correct:** WFA reflects the child's body mass relative to chronological age. Since weight is affected by both recent nutritional deficits (acute) and long-term growth failure (chronic), WFA is influenced by both **wasting** and **stunting**. Therefore, it is the common parameter used to identify "Underweight" children in both scenarios, though it cannot distinguish between the two. 2. **Analysis of Incorrect Options:** * **Weight-for-height (WFH):** This is the primary indicator for **acute malnutrition (Wasting)**. It reflects recent weight loss or failure to gain weight. * **Height-for-age (HFA):** This is the primary indicator for **chronic malnutrition (Stunting)**. It reflects long-term linear growth retardation due to prolonged nutritional deprivation or recurrent infections. * **Body Mass Index (BMI):** Like WFH, BMI-for-age is used primarily to assess wasting, thinness, or obesity; it is not a standard measure for chronic stunting. **High-Yield Clinical Pearls for NEET-PG:** * **Waterlow’s Classification:** Used to define malnutrition based on WFH (Wasting) and HFA (Stunting). * **Gomez Classification:** Uses **Weight-for-age** to grade malnutrition (Normal: >90%, Grade I: 75-90%, Grade II: 60-75%, Grade III: <60%). * **IAP Classification:** Also uses Weight-for-age, commonly used in India for community screening. * **Best indicator of acute malnutrition:** Weight-for-height. * **Best indicator of chronic malnutrition:** Height-for-age. * **First parameter to be affected in malnutrition:** Weight. * **Last parameter to be affected in malnutrition:** Head circumference.

Q: When comparing breast milk and cow's milk, which of the following is higher in cow's milk?

Concentration of casein protein. ### Explanation The fundamental difference between human milk and cow's milk lies in their protein composition and solute load, tailored to the specific growth needs of the species. **1. Why Casein Protein is the Correct Answer:** Cow's milk contains significantly more protein than breast milk (**3.5 g/dL** vs. **1.1 g/dL**). More importantly, the **Casein-to-Whey ratio** differs drastically. In cow's milk, the ratio is **80:20**, making casein the dominant protein. In contrast, breast milk has a ratio of **30:70** (whey-predominant), which is easier for an infant's immature digestive system to process. The high casein content in cow's milk forms hard, less digestible curds in the infant's stomach. **2. Analysis of Incorrect Options:** * **A. kcal/cc:** Both breast milk and cow's milk provide approximately the same caloric density, roughly **67 kcal/100ml** (or 0.67 kcal/cc). * **C. Carbohydrate content:** Breast milk is significantly **higher** in carbohydrates (Lactose) than cow's milk (7 g/dL vs. 4.5 g/dL). Lactose aids in calcium absorption and promotes the growth of *Lactobacillus bifidus*. * **D. Fat content:** The total fat content is roughly similar (approx. 3.5–4.5 g/dL). However, breast milk contains essential fatty acids and **lipase**, which aids in fat digestion, whereas cow's milk lacks these. **3. High-Yield NEET-PG Pearls:** * **Iron Bioavailability:** Although both have low iron content, **50%** of iron in breast milk is absorbed compared to only **10%** in cow's milk. * **Renal Solute Load:** Cow’s milk has a much higher renal solute load (due to high protein and minerals like Sodium, Potassium, and Phosphorus), which can lead to dehydration in infants. * **Minerals:** Cow's milk is higher in Calcium and Phosphorus, but the high phosphorus content can lead to **hypocalcemic tetany** in neonates. * **Vitamins:** Breast milk is rich in Vitamin A, C, and E, but **low in Vitamin K and Vitamin D**.

Q: Beaded ribs with epiphyseal swelling is a characteristic feature of which condition?

Vitamin D deficiency. **Explanation:** The clinical presentation of **beaded ribs** (Rachitic Rosary) and **epiphyseal swelling** is the hallmark of **Nutritional Rickets**, caused by **Vitamin D deficiency**. In Vitamin D deficiency, there is a failure of mineralization of the osteoid matrix at the growth plates. This leads to a compensatory overgrowth of cartilage at the costochondral junctions, creating palpable, rounded projections known as the **Rachitic Rosary**. Similarly, the accumulation of unmineralized osteoid at the long bones causes widening or "cupping and splaying" of the metaphyses, clinically presenting as **epiphyseal swelling** (most prominent at the wrists and ankles). **Analysis of Incorrect Options:** * **Vitamin A deficiency:** Primarily affects the eyes (Xerophthalmia, Bitot’s spots) and epithelial integrity; it does not cause bony deformities. * **Vitamin C deficiency (Scurvy):** While it also presents with a "rosary" at the costochondral junctions (Scorbutic Rosary), it is typically **angular and sharp** (due to subluxation of the sternum) rather than the smooth, rounded beads seen in Rickets. Scurvy is characterized by subperiosteal hemorrhages and "ground-glass" bones on X-ray. * **Vitamin K deficiency:** Leads to coagulation defects and hemorrhagic disease of the newborn, not skeletal remodeling issues. **NEET-PG High-Yield Pearls:** * **Earliest sign of Rickets:** Craniotabes (softening of skull bones). * **Earliest radiological sign:** Rarefaction of the zone of provisional calcification. * **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.

Q: Which of the following is seen in Marasmus and not in Kwashiorkor?

Voracious appetite. **Explanation:** The fundamental difference between Marasmus and Kwashiorkor lies in the type of deficiency and the body's adaptation to it. **Marasmus** is a state of balanced starvation (deficiency of both calories and protein), whereas **Kwashiorkor** is characterized by a disproportionate deficiency of protein relative to energy intake. **1. Why "Voracious Appetite" is correct:** In Marasmus, the body is in a state of extreme energy deficit but the metabolic processes for processing food remain relatively intact. The child is physiologically "hungry," leading to a **voracious appetite**. In contrast, children with Kwashiorkor typically suffer from **anorexia** (poor appetite) due to severe metabolic stress, electrolyte imbalances, and apathy. **2. Why other options are incorrect:** * **Fatty change in liver:** This is a hallmark of **Kwashiorkor**. Lack of protein leads to decreased synthesis of Apolipoprotein B-100, which is necessary to export triglycerides from the liver, resulting in steatosis (fatty liver). In Marasmus, there is no such protein-shuttling defect. * **Hypoalbuminemia & Edema:** These are the defining features of **Kwashiorkor**. Low protein intake leads to reduced hepatic albumin synthesis, decreasing plasma oncotic pressure and causing fluid to leak into the interstitial space (edema). Marasmus is characterized by "skin and bones" appearance without edema. **Clinical Pearls for NEET-PG:** * **Marasmus:** "Old man's face" (loss of buccal fat pads), alert but irritable, severe muscle wasting. * **Kwashiorkor:** "Moon face," "Flaky paint" dermatosis, "Flag sign" (banded hair discoloration), and psychomotor changes (apathy). * **Key differentiator:** The presence of **edema** always classifies Protein-Energy Malnutrition (PEM) as Kwashiorkor or Marasmic-Kwashiorkor, never pure Marasmus.

Q: S t a e r F-75 is stated in case of which condition?

Kwashiorkor. **Explanation:** **F-75** is the therapeutic milk diet used during the **Stabilization Phase** (Phase 1) of the management of **Severe Acute Malnutrition (SAM)**, which includes clinical presentations like **Kwashiorkor** and Marasmus. The primary goal of F-75 is not weight gain, but to restore metabolic homeostasis and electrolyte balance without overwhelming the child’s fragile physiological state. It contains 75 kcal and 0.9g of protein per 100 ml. In Kwashiorkor, F-75 is crucial because these children have severe edema and "reductive adaptation," making them highly susceptible to **Refeeding Syndrome** if given high-protein or high-calorie loads too early. **Analysis of Incorrect Options:** * **A. Beriberi:** Caused by Thiamine (Vitamin B1) deficiency. Management involves thiamine supplementation, not specialized therapeutic milk formulas. * **C. Scurvy:** Caused by Vitamin C deficiency. It is treated with oral or parenteral Ascorbic acid. * **D. Pellagra:** Caused by Niacin (Vitamin B3) deficiency (3 Ds: Dermatitis, Diarrhea, Dementia). Treatment involves Nicotinamide supplementation. **High-Yield Clinical Pearls for NEET-PG:** * **F-75 vs. F-100:** F-75 is for **Stabilization** (Days 1–7); F-100 (100 kcal/100 ml) is for **Rehabilitation** (catch-up growth). * **Composition:** F-75 is low in protein, sodium, and fat but high in carbohydrates to prevent hepatic overload. * **WHO 10 Steps:** The management of SAM follows a strict 10-step protocol, where F-75 is initiated in Step 7 (cautious feeding). * **Contraindication:** F-100 should **never** be used in the stabilization phase as it can trigger heart failure or refeeding syndrome.

Q: Which of the following is not an age-independent criteria for nutritional assessment?

Aiyyar scale. In pediatric nutrition assessment, indicators are classified as **age-dependent** (require knowing the exact age, e.g., Weight-for-age) or **age-independent** (useful when the exact birth date is unknown, common in field surveys). ### **Explanation of the Correct Answer** **C. Aiyyar scale:** This is the correct answer because it is **not** an age-independent criterion. The Aiyyar scale (or Aiyyar’s formula) is used to estimate the **expected weight** of a child based on their age: $[(\text{Age in years} + 3) \times 3]$. Since the formula requires the child's age to calculate the nutritional status, it is an **age-dependent** parameter. ### **Explanation of Incorrect Options** * **A. Rao scale:** This is the **Quetelet Index** ($Weight/Height^2$). It is age-independent and used to assess protein-energy malnutrition (PEM) in children aged 1–5 years. A value $<0.14$ indicates malnutrition. * **B. Kanawati scale:** This is the **Mid-Arm Circumference (MAC) to Head Circumference (HC) ratio**. Since both MAC and HC increase at similar rates between ages 1–5, the ratio remains constant (approx. 0.31). A ratio $ 13.5 cm) is normal, Yellow (12.5–13.5 cm) is borderline, and Red (<12.5 cm) is malnourished. * **Bangalore Method:** Another name for the Rao Index. * **Dugdale’s Index:** $Weight/Height^{1.6}$ (Age-independent). * **Best indicator of acute malnutrition:** Weight-for-height (Wasting). * **Best indicator of chronic malnutrition:** Height-for-age (Stunting).

Question 1

Which of the following statements is FALSE regarding complications of protein-energy malnutrition?

Accepted Answer

Hyperglycemia

Answer

Hypothermia

Answer

Septic shock

Answer

Electrolyte imbalance

Question 2

Breast milk can be stored in a refrigerator for up to how long without spoiling?

Accepted Answer

4 days

Answer

8 hours

Answer

24 hours

Answer

10 days

Question 3

What is true about foremilk and hind milk?

Accepted Answer

Hind milk helps relieve hunger.

Answer

Foremilk is high in fat.

Answer

Foremilk helps relieve hunger.

Answer

Hind milk is rich in protein.

Question 4

A child with proven vitamin A deficiency presents with clouding of the cornea. What is the appropriate treatment?

Accepted Answer

Intramuscular injection of vitamin A 50,000 IU once

Answer

Oral vitamin A tablets 100 IU/day

Answer

Oral syrup of vitamin A 1,000 IU/day

Answer

Intramuscular injection of vitamin A 5,000 IU once

Question 5

Which anthropometric parameter is common to both acute and chronic malnutrition?

Accepted Answer

Weight for age

Answer

Weight for height

Answer

Height for age

Answer

Body Mass Index (BMI)

Question 6

When comparing breast milk and cow's milk, which of the following is higher in cow's milk?

Accepted Answer

Concentration of casein protein

Answer

kcal/cc

Answer

Carbohydrate content

Answer

Fat content

Question 7

Beaded ribs with epiphyseal swelling is a characteristic feature of which condition?

Accepted Answer

Vitamin D deficiency

Answer

Vitamin A deficiency

Answer

Vitamin C deficiency

Answer

Vitamin K deficiency

Question 8

Which of the following is seen in Marasmus and not in Kwashiorkor?

Accepted Answer

Voracious appetite

Answer

Fatty change in liver

Answer

Hypoalbuminemia

Answer

Edema

Question 9

S t a e r F-75 is stated in case of which condition?

Accepted Answer

Kwashiorkor

Answer

Beriberi

Answer

Scurvy

Answer

Pellagra

Question 10

Which of the following is not an age-independent criteria for nutritional assessment?

Accepted Answer

Aiyyar scale

Answer

Rao scale

Answer

Kanawati scale

Answer

Mid arm circumference

Pediatric Nutrition — MCQs

Pediatric Nutrition — MCQs

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