Pediatric Nutrition Practice Questions

Q: What is the best indicator of nutritional status for a child?

Rate of increase in height and weight. **Explanation:** The assessment of growth and nutritional status in children is a dynamic process. While single measurements provide a "snapshot," the **rate of increase in height and weight** (growth velocity) is the most sensitive and reliable indicator of a child’s overall nutritional and health status. **Why the correct answer is right:** Growth is the most sensitive indicator of health in a child. A steady progression along growth curves on a percentile chart signifies nutritional adequacy. A deviation or "flattening" of the growth curve is often the first sign of nutritional deficiency or underlying systemic illness, even before the child appears clinically malnourished. Weight reflects acute nutritional status, while height reflects long-term (chronic) nutritional status. **Why other options are incorrect:** * **Mid-arm circumference (MUAC):** This is primarily used as a screening tool for Severe Acute Malnutrition (SAM) in children aged 6–59 months, especially in field settings. It is not the best indicator for overall, continuous nutritional monitoring. * **Head circumference:** This reflects brain growth rather than general nutritional status. It is typically monitored only up to age 3. * **Chest circumference:** This is used mainly in the neonatal period and early infancy to compare with head circumference (they equalize around 1 year of age). It is not a standard longitudinal measure for nutrition. **NEET-PG High-Yield Pearls:** * **Best indicator for Acute Malnutrition (Wasting):** Weight-for-height. * **Best indicator for Chronic Malnutrition (Stunting):** Height-for-age. * **First parameter to be affected in malnutrition:** Weight. * **Quac Stick (MUAC-for-height):** Used for rapid nutritional assessment in emergencies. * **Waterlow’s Classification:** Uses weight-for-height (wasting) and height-for-age (stunting) to categorize malnutrition.

Q: Pseudo paralysis is seen in which condition?

Scurvy. **Explanation:** **Pseudoparalysis** in **Scurvy** (Vitamin C deficiency) occurs due to extreme pain caused by **subperiosteal hemorrhages**, particularly in the long bones of the lower limbs. While the motor nerves and muscles are structurally intact, the child refuses to move the limbs to avoid excruciating pain, mimicking paralysis. This often presents as the "Frog-leg position" (infant lies with hips and knees semiflexed and abducted). **Analysis of Options:** * **Scurvy (Correct):** Defective collagen synthesis leads to capillary fragility and subperiosteal bleeding. The resulting bone pain causes pseudoparalysis. * **Rickets:** Characterized by defective mineralization of the osteoid matrix. While it causes bone pain and muscle weakness (hypotonia), it does not typically present as pseudoparalysis. * **Polio:** Causes **true paralysis** (Lower Motor Neuron type) due to the destruction of anterior horn cells in the spinal cord. * **Osteomalacia:** This is the adult form of Vitamin C deficiency (Rickets equivalent). It presents with generalized bone pain and "Looser’s zones" but not pseudoparalysis. **NEET-PG High-Yield Pearls:** * **Radiological Signs of Scurvy:** * **White line of Frankel:** Dense provisional zone of calcification. * **Wimberger’s Sign:** Ring-shaped epiphysis. * **Pelkan Spur:** Marginal spurring. * **Trummerfeld Zone:** Scorbutic zone (radiolucent band proximal to the white line). * **Differential Diagnosis for Pseudoparalysis:** Scurvy, Congenital Syphilis (Parrot’s pseudoparalysis), Osteomyelitis, and Septic Arthritis. * **First Sign of Scurvy:** Irritability and loss of appetite; **Most specific sign:** Perifollicular hemorrhages/corkscrew hair.

Q: When can a severely malnourished child be safely discharged from the hospital?

The child loses edema and starts gaining weight.. ### Explanation Management of Severe Acute Malnutrition (SAM) is divided into two phases: **Stabilization** (in-patient) and **Rehabilitation** (out-patient/community-based). **Why Option C is Correct:** The primary goal of hospitalizing a child with SAM is to manage life-threatening complications (hypoglycemia, hypothermia, electrolyte imbalance, and infection). According to WHO and IAP guidelines, a child is ready to transition from the stabilization phase to the rehabilitation phase (and subsequent discharge) once the **appetite has returned**, **edema has resolved**, and the child shows **consistent weight gain** on F-100 or ready-to-use therapeutic food (RUTF). These signs indicate that the metabolic processes have stabilized and the "recovery" phase has begun. **Why Other Options are Incorrect:** * **Options A, B, and D:** Attaining "ideal" weight-for-height, height-for-age (stunting), or weight-for-age (underweight) are long-term nutritional goals. Achieving these parameters can take months of sustained nutritional support. Keeping a child hospitalized until they reach these targets is impractical, increases the risk of nosocomial infections, and is not cost-effective. **High-Yield Clinical Pearls for NEET-PG:** * **Criteria for SAM:** Weight-for-height/length < -3 SD, MUAC < 11.5 cm, or presence of bilateral pitting edema. * **Refeeding Syndrome:** The most dangerous complication during early nutritional transition; watch for **Hypophosphatemia**, Hypokalemia, and Hypomagnesemia. * **Feeding Protocol:** Start with **F-75** (75 kcal/100ml) for stabilization and transition to **F-100** (100 kcal/100ml) for catch-up growth. * **Target Weight Gain:** In the rehabilitation phase, a weight gain of **>10 g/kg/day** is considered "Good."

Q: Which component of breast milk decreases the risk of retinitis pigmentosa?

Docosahexaenoic acid (DHA). **Explanation:** **Docosahexaenoic acid (DHA)** is the correct answer because it is a long-chain polyunsaturated fatty acid (LC-PUFA) that serves as a critical structural component of the **retinal photoreceptors** and the gray matter of the brain. In the retina, DHA is highly concentrated in the rod outer segments, where it influences rhodopsin activation and visual signaling. Studies have shown that DHA supplementation or its presence in breast milk supports retinal development and may mitigate the progression of degenerative retinal conditions like **retinitis pigmentosa** by maintaining the integrity of photoreceptor membranes. **Analysis of Incorrect Options:** * **Vitamin A:** While essential for the formation of rhodopsin and preventing night blindness (xerophthalmia), it is not the specific structural component of breast milk primarily linked to the reduced risk of retinitis pigmentosa in this context. * **Vitamin B12:** This is crucial for DNA synthesis and myelin formation. Deficiency leads to megaloblastic anemia and subacute combined degeneration of the cord, but it does not have a direct structural role in retinal pigment epithelium. * **Taurine:** Though taurine is an amino acid found in high concentrations in the retina and breast milk (essential for preterm infants), DHA is the more definitive structural lipid associated with this specific protective benefit. **High-Yield Clinical Pearls for NEET-PG:** * **Breast Milk vs. Cow Milk:** Breast milk contains DHA and Arachidonic Acid (ARA), which are absent in unmodified cow's milk. * **Preterm Infants:** They are at high risk for DHA deficiency because the majority of DHA transfer occurs during the **third trimester**. * **Visual Acuity:** DHA is the most important nutrient for the development of visual acuity and cognitive function in the first two years of life.

Q: Which of the following is NOT seen in kwashiorkor?

Increased albumin. **Explanation:** The hallmark of **Kwashiorkor** is a severe deficiency of dietary protein despite adequate or near-adequate caloric intake. This leads to a state of **hypoalbuminemia** (decreased serum albumin), which reduces plasma oncotic pressure, resulting in the characteristic generalized edema (anasarca). Therefore, **Increased albumin** is incorrect and is the right answer to this "NOT" question. **Analysis of Options:** * **Apathy:** Children with Kwashiorkor typically exhibit significant mental changes, including extreme irritability, lethargy, and **apathy** (lack of interest/emotion). * **Flaky paint dermatosis:** This is a pathognomonic skin finding in Kwashiorkor. It involves hyperpigmentation and thickening of the skin, which then cracks and peels off, resembling "flaky paint" or "crazy paving," leaving behind pale, friable skin. * **Poor appetite:** Unlike Marasmus (where the child is usually ravenous), children with Kwashiorkor often suffer from **anorexia** (poor appetite), making nutritional rehabilitation more challenging. **High-Yield Clinical Pearls for NEET-PG:** * **Edema:** The essential diagnostic feature of Kwashiorkor; it starts in the lower extremities and can progress to the face ("Moon facies"). * **Hair Changes:** "Flag sign" (alternating bands of pigmented and depigmented hair) and "sparse/easy to pluck" hair are common. * **Fatty Liver:** Hepatomegaly occurs due to decreased synthesis of apolipoproteins, leading to fat accumulation in the liver. * **Marasmus vs. Kwashiorkor:** Marasmus is "balanced" starvation (calorie + protein deficiency) characterized by severe wasting ("skin and bones") and a "monkey-like" facies.

Q: What is the approximate water content of breast milk?

88%. **Explanation:** **Correct Option: C (88%)** Human breast milk is the gold standard for infant nutrition, and its primary component is water. Approximately **87% to 88%** of breast milk is water. This high water content is physiologically significant as it ensures that an exclusively breastfed infant remains well-hydrated, even in hot and humid climates, without the need for supplemental water. The remaining 12-13% consists of solids, including carbohydrates (lactose), fats, proteins, vitamins, and minerals. **Analysis of Incorrect Options:** * **Option A (48%) & B (68%):** These values are significantly lower than the actual water content. If breast milk were this concentrated, it would lead to a high renal solute load, potentially causing dehydration and hypernatremia in the neonate. * **Option D (98%):** This value is too high. If milk were 98% water, it would lack the caloric density (approx. 67 kcal/100ml) required to support the rapid growth and brain development seen in the first six months of life. **NEET-PG High-Yield Pearls:** * **Caloric Value:** Breast milk provides approximately **67 kcal/100 ml** (or 20 kcal/oz). * **Primary Carbohydrate:** Lactose is the main sugar, facilitating calcium absorption and providing energy. * **Protein Composition:** The whey-to-casein ratio in early lactation is roughly **60:40**, making it easily digestible compared to cow’s milk (which is 20:80). * **Foremilk vs. Hindmilk:** Foremilk (released at the start of a feed) is watery and rich in lactose to quench thirst, while hindmilk (released at the end) is rich in fat to provide satiety and weight gain. * **WHO Recommendation:** Exclusive breastfeeding is recommended for the first **6 months** of life. No additional water is required during this period.

Q: Compared to cow's milk, human milk has:

More iron. **Explanation:** The correct answer is **A. More iron**. While the absolute quantity of iron in both human and cow’s milk is relatively low (approx. 0.5 mg/L), the **bioavailability** of iron in human milk is significantly higher. About **50%** of the iron in human milk is absorbed by the infant, compared to only **10%** from cow’s milk. This is due to the presence of high levels of Vitamin C and lactose in breast milk, which facilitate absorption. **Analysis of Incorrect Options:** * **B. More proteins:** Incorrect. Cow’s milk contains about **3.5g/100ml** of protein, which is nearly three times higher than human milk (**1.1g/100ml**). Furthermore, cow’s milk is rich in casein (hard to digest), while human milk is rich in lactalbumin (whey protein). * **C. Less carbohydrates:** Incorrect. Human milk contains **more** carbohydrates (lactose) than cow’s milk (7g/100ml vs. 4.5g/100ml). This higher lactose content provides energy and promotes the growth of *Lactobacillus bifidus*. * **D. Less vitamins:** Incorrect. Human milk generally contains adequate vitamins (except Vitamin D and K) to meet the infant's needs. Specifically, human milk has more Vitamin A, C, and E than cow’s milk. **High-Yield Clinical Pearls for NEET-PG:** * **Energy Value:** Both human and cow’s milk provide approximately **65-67 kcal/100ml**. * **Minerals:** Cow’s milk has higher concentrations of Calcium, Phosphorus, Sodium, and Potassium, which can lead to a high renal solute load in neonates. * **Protective Factors:** Human milk contains **IgA**, lysozymes, and **Lactoferrin** (which sequesters iron to prevent bacterial growth), which are absent in cow’s milk. * **Colostrum:** Rich in IgA and fat-soluble vitamins; it has more protein but less fat and lactose than mature milk.

Question 1

What is the best indicator of nutritional status for a child?

Accepted Answer

Rate of increase in height and weight

Answer

Mid arm circumference

Answer

Head circumference

Answer

Chest circumference

Question 2

Pseudo paralysis is seen in which condition?

Accepted Answer

Scurvy

Answer

Rickets

Answer

Polio

Answer

Osteomalacia

Question 3

Which of the following is the best method for monitoring the treatment and resolution of vitamin D deficiency?

Accepted Answer

Serum calcium levels

Answer

Serum phosphate levels

Answer

Serum vitamin D levels

Answer

Serum parathormone levels

Question 4

When can a severely malnourished child be safely discharged from the hospital?

Accepted Answer

The child loses edema and starts gaining weight.

Answer

The child attains his height for age.

Answer

The child reaches his ideal weight for height.

Answer

The child attains weight for his age.

Question 5

Which component of breast milk decreases the risk of retinitis pigmentosa?

Accepted Answer

Docosahexaenoic acid (DHA)

Answer

Vitamin A

Answer

Vitamin B12

Answer

Taurine

Question 6

Which of the following is NOT seen in kwashiorkor?

Accepted Answer

Increased albumin

Answer

Apathy

Answer

Flaky paint dermatosis

Answer

Poor appetite

Question 7

Apart from diarrhea, oral rehydration solution has been employed in:

Accepted Answer

Both severe vomiting and heat stroke

Answer

Severe vomiting

Answer

Burn cases

Answer

Heat stroke

Question 8

What is the approximate water content of breast milk?

Accepted Answer

88%

Answer

48%

Answer

68%

Answer

98%

Question 9

Which of the following statements regarding the management of severe acute malnutrition (SAM) is false?

Accepted Answer

The decision for transfer from inpatient to outpatient care depends upon specific mid-upper arm circumference values.

Answer

SAM with severe edema should be hospitalized.

Answer

SAM with good appetite should be hospitalized.

Answer

SAM with poor appetite should be treated in the OPD.

Question 10

Compared to cow's milk, human milk has:

Accepted Answer

More iron

Answer

More proteins

Answer

Less carbohydrates

Answer

Less vitamins

Pediatric Nutrition — MCQs

Pediatric Nutrition — MCQs

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