Pediatric Nutrition — MCQs
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Flaring of the anterior ends of the ribs is characteristically seen in which condition?
A 2-year-old boy presents with his third bone fracture within the past several months. There is no history or evidence of trauma. Several close family members have been similarly affected. Two of the affected family members are also hard of hearing. The child is small for his age, and the sclerae are tinged a bluish color. Radiographs reveal generalized osteopenia and evidence of multiple fractures, both old and new. What is the most probable diagnosis?
What is the energy requirement in Kcal/kg for a 15kg child with normal body weight?
The Baby-Friendly Hospital Initiative (BFHI) recommends which of the following practices?
The composition of breast milk varies at different points of lactation to suit the baby's needs. Which statement is not true about breast milk composition?
A 9-month-old child has been diagnosed with measles. What is the recommended dose of vitamin A administration?
What is the recommended daily protein requirement for a preterm infant?
The child shown below is suffering from a congenital heart disease. Which congenital heart defect is most commonly seen in these children?
In a breastfed infant, what is the primary reason for a reduced chance of enteric infection?
A 3-year-old girl presents with severe dehydration. What is the best initial step if intravenous access cannot be obtained?
Pediatric Nutrition Indian Medical PG Practice Questions and MCQs
Question 41: Flaring of the anterior ends of the ribs is characteristically seen in which condition?
- A. Neurofibromatosis
- B. Scurvy
- C. Rickets (Correct Answer)
- D. Hypothyroidism
Explanation: ### Explanation **Correct Option: C. Rickets** The flaring or enlargement of the anterior ends of the ribs at the costochondral junctions is known as the **Rachitic Rosary**. In Rickets (most commonly due to Vitamin D deficiency), there is a failure of mineralization of the osteoid matrix. This leads to a compensatory overgrowth of the epiphyseal cartilage and disorganized expansion of the growth plate. Clinically, these appear as non-tender, rounded beads arranged in a row on either side of the sternum. **Analysis of Incorrect Options:** * **A. Neurofibromatosis:** While it can cause skeletal deformities like sphenoid wing dysplasia or "rib ribboning" (thinning of ribs), it does not cause flaring of the anterior rib ends. * **B. Scurvy:** Scurvy also presents with a "Scorbutic Rosary." However, unlike the smooth, rounded beads of Rickets, the scorbutic rosary is **angular and tender**, caused by the subluxation of the sternum backward at the costochondral junction. * **D. Hypothyroidism:** Congenital hypothyroidism (Cretinism) leads to delayed bone age and epiphyseal dysgenesis (stippled epiphysis), but not costochondral flaring. **NEET-PG High-Yield Pearls:** * **Rachitic Rosary:** Rounded, non-tender, due to cartilage hypertrophy. * **Scorbutic Rosary:** Sharp/Angular, tender, due to subluxation. * **Harrison’s Sulcus:** A horizontal groove along the lower border of the thorax corresponding to the insertion of the diaphragm, often seen in severe Rickets. * **Craniotabes:** Softening of skull bones (ping-pong ball sensation), the earliest sign of Rickets (seen before 6 months of age). * **Radiological Sign:** "Cupping, splaying, and fraying" of the metaphysis is the hallmark of Rickets.
Question 42: A 2-year-old boy presents with his third bone fracture within the past several months. There is no history or evidence of trauma. Several close family members have been similarly affected. Two of the affected family members are also hard of hearing. The child is small for his age, and the sclerae are tinged a bluish color. Radiographs reveal generalized osteopenia and evidence of multiple fractures, both old and new. What is the most probable diagnosis?
- A. Osteopetrosis
- B. Achondroplasia
- C. Pyknodysostosis
- D. Osteogenesis imperfecta (Correct Answer)
Explanation: ### Explanation The correct diagnosis is **Osteogenesis Imperfecta (OI)**, specifically Type I, which is the most common and mildest form. **Why Osteogenesis Imperfecta is correct:** OI is a genetic disorder of connective tissue caused by mutations in the **COL1A1 or COL1A2** genes, leading to defective synthesis of **Type 1 Collagen**. * **Bone Fragility:** Defective collagen results in generalized osteopenia and recurrent fractures with minimal or no trauma. * **Blue Sclerae:** The thinning of the scleral collagen allows the underlying choroidal veins to show through, giving a bluish tint. * **Hearing Loss:** Conductive or sensorineural hearing loss occurs due to the deformity or fixation of the ossicles in the middle ear. * **Inheritance:** It is typically autosomal dominant, explaining the positive family history. **Why the other options are incorrect:** * **A. Osteopetrosis:** Known as "Marble Bone Disease," it involves defective osteoclast function. Radiographs show **increased bone density** (sclerotic bones), not osteopenia. * **B. Achondroplasia:** This is a disorder of fibroblast growth factor receptor 3 (FGFR3). It presents with disproportionate short stature (rhizomelic shortening) but is **not** associated with blue sclerae or increased bone fragility. * **C. Pyknodysostosis:** A rare lysosomal storage disease (Cathepsin K deficiency) characterized by dense bones, short stature, and delayed closure of cranial sutures (fontanelles). While it causes fractures, it does not feature blue sclerae. **High-Yield Clinical Pearls for NEET-PG:** * **Type 1 Collagen** is found in "B-O-N-E" (Bone, Otic/Ear, Ocular/Sclera). * **OI Type II** is the most severe/perinatal lethal form (presents with multiple in-utero fractures and crumpled femurs). * **Differential Diagnosis:** Always rule out **Child Abuse (Non-accidental injury)** in cases of multiple fractures; however, blue sclerae and family history strongly point toward OI. * **Treatment:** Bisphosphonates (e.g., Pamidronate) are used to increase bone mineral density and reduce fracture rates.
Question 43: What is the energy requirement in Kcal/kg for a 15kg child with normal body weight?
- A. 1000 Kcal/kg
- B. 1250 Kcal/kg (Correct Answer)
- C. 1500 Kcal/kg
- D. 1750 Kcal/kg
Explanation: The energy requirement for children is calculated using the **Holliday-Segar Formula**, which is a high-yield concept for NEET-PG. This formula estimates the daily caloric needs based on body weight: * **First 10 kg:** 100 Kcal/kg * **Next 10 kg (11–20 kg):** 50 Kcal/kg for each kg above 10 * **Each kg above 20 kg:** 20 Kcal/kg for each kg above 20 **Calculation for a 15 kg child:** 1. First 10 kg = 10 × 100 = **1000 Kcal** 2. Remaining 5 kg = 5 × 50 = **250 Kcal** 3. **Total Energy Requirement** = 1000 + 250 = **1250 Kcal** **Analysis of Incorrect Options:** * **Option A (1000 Kcal):** This represents the requirement for a child weighing exactly 10 kg. * **Option C (1500 Kcal):** This would be the requirement for a 20 kg child (1000 + 500). * **Option D (1750 Kcal):** This would be the requirement for a child weighing approximately 32.5 kg. **High-Yield Clinical Pearls for NEET-PG:** * **Fluid Requirements:** The Holliday-Segar formula is also used to calculate maintenance fluid requirements (1 Kcal ≈ 1 mL of fluid). Thus, a 15 kg child requires 1250 mL of fluid/day. * **Catch-up Growth:** In children with Severe Acute Malnutrition (SAM), energy requirements can increase up to 150–220 Kcal/kg/day during the rehabilitation phase. * **Infant Needs:** A term neonate requires approximately 100–120 Kcal/kg/day, which gradually decreases as the child grows.
Question 44: The Baby-Friendly Hospital Initiative (BFHI) recommends which of the following practices?
- A. An oral breastfeeding policy among the staff
- B. Rooming-in (Correct Answer)
- C. Four-hourly breastfeeding
- D. Breastfeeding within one hour of birth
Explanation: The **Baby-Friendly Hospital Initiative (BFHI)**, launched by WHO and UNICEF in 1991, is based on the **"Ten Steps to Successful Breastfeeding."** ### **Why "Rooming-in" is Correct** **Step 7** of the BFHI guidelines specifically mandates **Rooming-in**, which allows mothers and infants to remain together 24 hours a day. This practice is crucial because it facilitates demand feeding, strengthens maternal-infant bonding, and increases the success rate and duration of exclusive breastfeeding. ### **Analysis of Incorrect Options** * **A. An oral breastfeeding policy:** This is incorrect because **Step 1** requires a **written** breastfeeding policy that is routinely communicated to all healthcare staff. * **C. Four-hourly breastfeeding:** This is incorrect because **Step 8** encourages **breastfeeding on demand** (whenever the baby shows hunger cues), rather than following a rigid schedule. * **D. Breastfeeding within one hour of birth:** While this is a core recommendation of BFHI (**Step 4**), the standard guideline specifies initiating breastfeeding within **30 minutes** of birth (especially for vaginal deliveries). In many recent exams, "Rooming-in" is the more classically tested "Step" among these options. ### **High-Yield Clinical Pearls for NEET-PG** * **The 10th Step:** Refers to fostering the establishment of breastfeeding support groups and referring mothers to them on discharge. * **Step 6 (No supplements):** Give newborn infants no food or drink other than breast milk, unless medically indicated (No pre-lacteal feeds). * **Step 9 (No artificial teats):** Give no artificial teats or pacifiers (soothers) to breastfeeding infants to prevent nipple confusion. * **Recent Update:** The BFHI guidelines were updated in 2018 to emphasize "responsive feeding" and integrating the program into the broader "Quality of Care" framework.
Question 45: The composition of breast milk varies at different points of lactation to suit the baby's needs. Which statement is not true about breast milk composition?
- A. Preterm milk has more proteins
- B. Mature milk is thicker with all the essential nutrients for growth (Correct Answer)
- C. Foremilk is watery and is rich in proteins and sugar
- D. Hindmilk is richer in fat and provides more energy
Explanation: ### Explanation The composition of breast milk is dynamic, changing based on the gestational age of the infant and the duration of the feeding session. **Why Option B is the correct (False) statement:** While mature milk (produced from day 15 onwards) contains all essential nutrients, it is actually **thinner and more watery** in appearance compared to colostrum. Colostrum is thick, yellow, and viscous due to its high protein and fat-soluble vitamin content. Mature milk's appearance often leads mothers to mistakenly believe their milk is "too thin," making this a high-yield clinical point. **Analysis of other options:** * **Option A (True):** **Preterm milk** contains higher concentrations of proteins, sodium, iron, and calories compared to term milk to meet the rapid growth demands and higher nutritional requirements of a premature infant. * **Option C (True):** **Foremilk** is the milk secreted at the start of a feed. It is watery to quench the baby's thirst and is rich in proteins, lactose (sugar), vitamins, and minerals. * **Option D (True):** **Hindmilk** comes toward the end of a feed. It is significantly richer in fats, providing satiety and the majority of the energy (calories) required for weight gain. **NEET-PG Clinical Pearls:** * **Colostrum:** Secreted during the first 3 days; rich in **IgA** and lactoferrin (anti-infective properties). * **Transition milk:** Secreted between 4–14 days; immunoglobulins decrease while fat and sugar content increase. * **Energy Value:** Breast milk provides approximately **67 kcal/100 ml**. * **Carbohydrate:** The primary sugar is **Lactose**, which aids in calcium absorption and promotes the growth of *Lactobacillus bifidus*.
Question 46: A 9-month-old child has been diagnosed with measles. What is the recommended dose of vitamin A administration?
- A. 50,000 IU
- B. 1,00,000 IU (Correct Answer)
- C. 1,50,000 IU
- D. 2,00,000 IU
Explanation: **Explanation:** Vitamin A is a critical micronutrient for maintaining epithelial integrity and immune function. In the context of **Measles**, Vitamin A levels drop rapidly, increasing the risk of severe complications like blindness (keratomalacia), pneumonia, and diarrhea. Therefore, the WHO and National Guidelines recommend immediate supplementation for all children diagnosed with measles. The dosage is strictly **age-dependent**: * **< 6 months:** 50,000 IU * **6 – 11 months:** 1,00,000 IU (Correct Answer) * **≥ 12 months:** 2,00,000 IU **Analysis of Options:** * **Option A (50,000 IU):** This is the therapeutic dose for infants younger than 6 months. * **Option B (1,00,000 IU):** Correct. Since the child is 9 months old, they fall into the 6–11 month bracket. * **Option C (1,50,000 IU):** This is not a standard recommended dose in the Vitamin A protocol. * **Option D (2,00,000 IU):** This is the dose for children aged 1 year and older. **High-Yield Clinical Pearls for NEET-PG:** 1. **Schedule:** For measles treatment, two doses are given: the first immediately upon diagnosis and the second the following day. A third dose is added 4 weeks later if clinical signs of Vitamin A deficiency (e.g., Bitot’s spots) are present. 2. **Prophylaxis vs. Treatment:** Do not confuse this with the **National Prophylactic Program**, where the first dose (1 lakh IU) is given at 9 months (with Measles-Rubella vaccine) and subsequent doses (2 lakh IU) are given every 6 months until age 5 (total 9 doses/17 lakh IU). 3. **Mechanism:** Vitamin A reduces measles mortality by approximately 50%.
Question 47: What is the recommended daily protein requirement for a preterm infant?
- A. 0.5-1 gm/kg
- B. 1.5-2 gm/kg
- C. 2.5-3 gm/kg
- D. 3.5-4 gm/kg (Correct Answer)
Explanation: **Explanation:** The correct answer is **D (3.5-4 gm/kg)**. **Why it is correct:** Preterm infants have significantly higher protein requirements compared to term infants to facilitate "catch-up growth" and match the intrauterine growth rate (the rate at which a fetus would grow during the third trimester). To achieve a weight gain of approximately 15–20 g/kg/day, a high protein-to-energy ratio is essential. Current guidelines (including WHO and ESPGHAN) recommend a protein intake of **3.5 to 4.5 g/kg/day** for very low birth weight (VLBW) infants to prevent postnatal growth restriction and support neurodevelopment. **Why other options are incorrect:** * **A (0.5-1 gm/kg):** This is grossly inadequate and would lead to a negative nitrogen balance and muscle wasting. * **B (1.5-2 gm/kg):** This is the maintenance requirement for an **older child or a term neonate** (approx. 2 g/kg/day), but it is insufficient for the rapid growth needs of a preterm baby. * **C (2.5-3 gm/kg):** While better, this range often results in suboptimal growth in extremely premature infants. It may be acceptable for late preterms, but the standard recommendation for preterm management focuses on the higher 3.5-4 g/kg range. **High-Yield Clinical Pearls for NEET-PG:** * **Energy Requirement:** Preterm infants require **110–130 kcal/kg/day** for adequate growth. * **Protein-Energy Ratio:** For optimal protein utilization, an infant needs roughly 25–30 kcal for every gram of protein. * **Early Initiation:** "Aggressive nutrition" (starting amino acids at 2–3 g/kg/day within the first hours of life) is now standard to prevent the "metabolic shock" of birth. * **Monitoring:** Blood Urea Nitrogen (BUN) and serum albumin are used to monitor if protein intake is adequate or excessive.
Question 48: The child shown below is suffering from a congenital heart disease. Which congenital heart defect is most commonly seen in these children?
- A. Patent ductus arteriosus
- B. Atrial septal defect
- C. Atrioventricular septal defect (Correct Answer)
- D. Ventricular septal defect
Explanation: ***Atrioventricular septal defect*** - **Endocardial cushion defects** (AVSD) are the most common congenital heart disease in **Down syndrome**, occurring in approximately **40-45%** of cases. - Results from incomplete fusion of the **endocardial cushions**, leading to defects in both the atrial and ventricular septum with **common atrioventricular valve**. *Patent ductus arteriosus* - More commonly associated with **prematurity** and **maternal rubella infection** rather than Down syndrome. - Characterized by persistent connection between the **aorta and pulmonary artery**, causing a **continuous "machinery" murmur**. *Atrial septal defect* - While seen in Down syndrome, it's less frequent than **AVSD** in this population. - More commonly associated with **Holt-Oram syndrome** and presents with a **fixed split S2** heart sound. *Ventricular septal defect* - Though **VSD is the most common CHD overall** in the general population, it's not the predominant defect in Down syndrome. - Typically presents with a **holosystolic murmur** at the left sternal border and may cause **failure to thrive**.
Question 49: In a breastfed infant, what is the primary reason for a reduced chance of enteric infection?
- A. Alkaline pH of the infant's gut
- B. Nutrients and immunological superiority of breast milk (Correct Answer)
- C. Immunoglobulin content in breast milk
- D. Presence of Bacteroides and Clostridium in the infant's gut
Explanation: **Explanation:** The primary reason for the reduced incidence of enteric infections in breastfed infants is the **nutrients and immunological superiority of breast milk**. Breast milk is a living biological fluid containing a synergistic combination of bioactive factors. Key components include **Secretory IgA (sIgA)**, which prevents pathogen adherence to the gut mucosa, **Lactoferrin**, which sequesters iron to inhibit bacterial growth, and **Lysozymes**. Furthermore, breast milk contains **Human Milk Oligosaccharides (HMOs)**, which act as prebiotics to promote a healthy microbiome, providing a multi-layered defense system that is superior to any single component alone. **Analysis of Incorrect Options:** * **Option A:** Incorrect. The gut of a breastfed infant is actually **acidic (low pH)**, not alkaline. This acidity is maintained by the fermentation of lactose by *Lactobacillus bifidus*, which inhibits the growth of pathogens like *E. coli* and *Shigella*. * **Option C:** Incorrect because it is too narrow. While immunoglobulins (specifically sIgA) are vital, they are only one part of the "immunological superiority." Option B is a more comprehensive answer encompassing cellular immunity, enzymes, and prebiotics. * **Option D:** Incorrect. *Bacteroides* and *Clostridium* are typically found in higher concentrations in **formula-fed infants**. Breastfed infants have a gut flora dominated by **Bifidobacteria**. **NEET-PG High-Yield Pearls:** * **Bifidus Factor:** A specific carbohydrate in breast milk that promotes the growth of *Lactobacillus bifidus*, leading to an acidic gut environment. * **Secretory IgA:** The most abundant immunoglobulin in breast milk; it provides "passive mucosal immunity" without triggering inflammation. * **Colostrum:** Richer in antibodies (IgA) and white blood cells compared to mature milk, acting as the infant's "first immunization."
Question 50: A 3-year-old girl presents with severe dehydration. What is the best initial step if intravenous access cannot be obtained?
- A. Subclavian central line
- B. Intraosseous access (Correct Answer)
- C. Jugular cut down
- D. Femoral vein cannulation
Explanation: **Explanation:** In pediatric emergencies involving severe dehydration or shock, establishing rapid vascular access is critical for fluid resuscitation. According to the **PALS (Pediatric Advanced Life Support)** guidelines, if peripheral intravenous (IV) access cannot be established within **90 seconds or three attempts**, the immediate next step is **Intraosseous (IO) access**. **Why Intraosseous (IO) access is the correct choice:** The medullary cavity of long bones contains a rich network of non-collapsible venous sinusoids that drain into the central circulation. Unlike peripheral veins, these do not collapse during circulatory shock or severe dehydration. IO access is rapid to perform (usually under 1 minute), has a high success rate, and allows for the administration of all IV fluids, medications, and blood products. **Analysis of Incorrect Options:** * **Subclavian central line (A):** This is technically difficult in a dehydrated child, carries a high risk of pneumothorax, and takes too much time in an emergency. * **Jugular/Venous cut down (C):** Once a common practice, it is now considered obsolete in initial emergency management because it is time-consuming and requires surgical skill. * **Femoral vein cannulation (D):** While a viable route for central access, it is more difficult and slower to achieve than IO access in a collapsed, dehydrated patient. **High-Yield Clinical Pearls for NEET-PG:** * **Most common site for IO:** Proximal tibia (1–3 cm below the tibial tuberosity on the anteromedial surface). * **Contraindications:** Bone fracture at the site, osteogenesis imperfecta, or overlying skin infection. * **Gold Standard for Fluid Resuscitation:** Isotonic crystalloids (Normal Saline or Ringer’s Lactate) at a bolus of **20 ml/kg**.
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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