INTERACTIVE MCQS ON FEEDING OF LBW BABIES

Low Birth Weight (LBW) Feeding Guidelines

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Question 1

An Extremely Low Birth Weight (ELBW) infant is admitted to your NICU. To preserve lean body mass and optimize tissue growth during critical brain-growth windows, what is the recommended daily target for protein intake?

• A) 1.5 – 2.0 g/kg/day
• B) 2.5 – 3.0 g/kg/day
• C) 3.5 – 4.0 g/kg/day (up to 4.5 g/kg/day)
• D) 5.0 – 5.5 g/kg/day

Correct Answer: C Explanation: To preserve lean body mass and sustain a growth velocity matching rapid intrauterine tissue development, aggressive targets of 3.5–4.0 g/kg/day (extending up to 4.5 g/kg/day for ELBW infants) must be executed.

Question 2

A Very Low Birth Weight (VLBW) infant tolerates enteral feeds well. At what fluid volume thresholds should you initiate Human Milk Fortifier (HMF) supplementation to prevent growth faltering?

• A) 50 – 60 mL/kg/day
• B) 80 – 90 mL/kg/day
• C) 100 – 120 mL/kg/day
• D) Once full maintenance fluids reach 150 mL/kg/day

Correct Answer: C Explanation: Human Milk Fortifier (HMF) should be added to Own Mother's Milk once a VLBW infant establishes metabolic tolerance to enteral feed volumes between 100–120 mL/kg/day.

Question 3

When Own Mother's Milk is unavailable for a VLBW infant, what is the next best choice according to the Enteral Milk Hierarchy?

• A) Specialized Preterm Formula
• B) Pasteurized Donor Milk
• C) Standard Term Formula
• D) Diluted Cow's Milk

Correct Answer: B Explanation: Pasteurized Donor Milk stands as the second-line choice within the clinical hierarchy. While heat pasteurization eliminates protective living white cells and heat-labile enzymes, it effectively preserves the clinical benefit of keeping NEC rates low.

Question 4

Why is the use of specialized preterm formula considered a "last resort" intervention in low birth weight nutrition?

• A) It does not provide enough calories for the infant.
• B) It is associated with a 3–4× increase in the risk of Necrotizing Enterocolitis (NEC).
• C) It causes immediate severe metabolic alkalosis.
• D) It results in severe trace element toxicity.

Correct Answer: B Explanation: Specialized preterm formula introduces a high renal solute load and is clinically linked to a 3- to 4-fold increase in the risk of developing Necrotizing Enterocolitis (NEC) compared to human milk regimens.

Question 5

A neonate is born at 30 weeks of gestation. According to maturity-based protocols, which route of feeding is most appropriate for this infant?

• A) Direct Breastfeeding
• B) Spoon or Paladai feeding
• C) Oro-gastric (OG) or Naso-gastric (NG) tube feeding
• D) Exclusive Total Parenteral Nutrition (TPN) with zero gut exposure

Correct Answer: C Explanation: Between 28–31 weeks of gestation, infants present brief sucking bursts but lack the vital structural swallow-breathe coordination required for oral feeds, making tube placement necessary.

Question 6

Which of the following describes the correct clinical rule regarding the use of gastric feeding tubes in an infant born at 31 weeks of gestation?

• A) Naso-gastric tubes are preferred because they do not trigger gagging.
• B) Oro-gastric tubes are mandatory because neonates are obligate nasal breathers.
• C) Trans-pyloric feeding tubes should be placed routinely on Day 1.
• D) Tubes are contraindicated; the infant must be fed strictly via a paladai.

Correct Answer: B Explanation: Neonates are obligate nasal breathers. Placing a naso-gastric tube below 32 weeks drastically raises airway resistance and work of breathing, meaning an oro-gastric path must be favored.

Question 7

Minimal Enteral Nutrition (Trophic Feeding) is initiated in a stable VLBW infant. What is the primary clinical objective of this intervention?

• A) To satisfy daily caloric targets (110–135 kcal/kg/day)
• B) To stimulate gut mucosal maturation and prevent atrophy
• C) To deliver high-dose calcium and phosphorus requirements
• D) To limit physiological weight loss during the first week of life

Correct Answer: B Explanation: Trophic feeds are not intended to fulfill systemic caloric targets, but rather to stimulate structural gut maturation, reinforce tight junction integrity, and prevent mucosal atrophy.

Question 8

During trophic feeding execution, which delivery method is mandatory to prevent fat and lipid separation along the delivery system?

• A) Continuous mechanical pump infusion
• B) Rapid IV push via a central line
• C) Intermittent bolus via gravity drainage
• D) Trans-pyloric slow drip over 24 hours

Correct Answer: C Explanation: Utilizing mechanical continuous pump infusions allows lipids and structural fats to separate from the baseline milk and adhere directly to the syringe walls. Using gravity-fed intermittent boluses avoids this energy loss.

Question 9

You are adjusting fluids on Day 1 for two newborns: Baby A (<1500g) and Baby B (≥1500g). What are their respective target starting fluid volumes?

• A) Baby A: 60 mL/kg/day; Baby B: 80 mL/kg/day
• B) Baby A: 80 mL/kg/day; Baby B: 60 mL/kg/day
• C) Both babies must start at exactly 100 mL/kg/day.
• D) Both babies must start at exactly 150 mL/kg/day.

Correct Answer: B Explanation: Fluid administration guidelines recommend setting initial baseline targets on Day 1 at 80 mL/kg/day for infants under 1,500 grams, and 60 mL/kg/day for infants at or above 1,500 grams.

Question 10

What is the paradigm shift regarding routine monitoring of feeding tolerance in an asymptomatic low birth weight infant?

• A) Perform routine gastric aspirations every 2 hours before feeds.
• B) Monitor serial abdominal girth every 2 hours; aspirate only if girth increases ≥2 cm or vomiting occurs.
• C) Perform daily abdominal X-rays to check for free air.
• D) Rely strictly on changes in heart rate to determine gut tolerance.

Correct Answer: B Explanation: The old method of blind pre-feed suctioning poses physical trauma risks to thin gastric walls. Current evidence maps serial abdominal girth evaluation every 2 hours as a much safer, non-invasive early standard to check tolerance.

Question 11

An asymptomatic infant's pre-feed check reveals a clear, non-bilious gastric aspirate that measures 40% of the total feed volume. According to the volume algorithm, what is your next action?

• A) Withhold the next 3 feeds and start TPN.
• B) Do NOT hold the feed; reduce the next feed volume by the aspirate amount and monitor closely.
• C) Withhold 1–2 feeds, monitor closely, then restart.
• D) Immediately evaluate the infant for emergency bowel surgery.

Correct Answer: B Explanation: For clear, non-bilious residuals sitting between 25% and 50% of the prescribed volume, the algorithm indicates keeping the schedule open but scaling back the next feed by the aspirated volume.

Question 12

Which of the following clinical scenarios presents a pathological "Red Flag" that requires withholding feeds for 24–48 hours and an immediate workup for sepsis or NEC?

• A) A single clear gastric aspirate that is exactly 10% of the feed volume.
• B) An abdominal girth increase of 0.5 cm without vomiting.
• C) A bile- or blood-stained gastric aspirate or vomit.
• D) The infant fails to stool for 12 hours but remains asymptomatic.

Correct Answer: C Explanation: Finding bile (greenish fluid) or blood inside an aspirate, or clear residuals accompanied by systemic clinical warning signs like apnea, represents a true clinical red flag requiring 24–48 hours of bowel rest and medical evaluation.

Question 13

Your NICU utilizes PreNAN HMF to fortify expressed breast milk. What critical micronutrient gap must you proactively address with standalone daily supplementation?

• A) Zinc
• B) Vitamin D₃ (800 IU/day)
• C) Vitamin K
• D) Magnesium

Correct Answer: B Explanation: PreNAN HMF mixtures are characteristically short on necessary Vitamin D levels. Clinicians must balance this by manually prescribing a standalone Vitamin D3 dose (800 IU/day).

Question 14

A VLBW infant is being prepared for long-term tracking. According to the checklist guidelines, at what age should iron supplementation be started, and for how long?

• A) Start at 2 weeks of life; continue until 40 weeks PMA.
• B) Start at 4 weeks of life; continue until 2 years of age.
• C) Start at birth; continue until discharge.
• D) Start at 6 months of life; continue until 5 years of age.

Correct Answer: B Explanation: For all VLBW infants, preventative iron (2 mg/kg/day) must be initiated precisely at 4 weeks of life and maintained securely until 2 years of age.

Question 15

A preterm infant born at 33 weeks gestation has hit a weight of 1,650 grams and has demonstrated excellent weight gain for 4 consecutive days. Can this infant be safely discharged home today?

• A) Yes, because the infant is over 1600 g and gaining weight.
• B) No, because the infant has not reached 40 weeks PMA.
• C) No, because the infant does not meet the gestational maturity mandate of ≥ 34 weeks.
• D) Yes, because any infant gaining weight for more than 3 days can be discharged.

Correct Answer: C Explanation: To be eligible for safe discharge, infants must concurrently satisfy three distinct rules: a gestational age of ≥ 34 weeks, a weight over 1,600 grams, and 3 consecutive days of documented weight gain. This case fails the maturity timeline threshold.