IBCLC Practice Exam 2026 – All-in-One Guide to Excelling in Your Lactation Consultant Certification!

Question: 1 / 435

What defines very low birth weight (VLBW)?

Less than 1000 grams

1000 to 1499 grams

Very low birth weight (VLBW) is specifically defined as any infant who weighs less than 1500 grams at birth. The significance of this classification is that infants in this weight category are at a higher risk for various health complications, including respiratory distress, infections, and long-term developmental issues.

The classification of very low birth weight is important for both clinical care and research, as it enables healthcare providers to identify infants who may require specialized medical attention and interventions.

In this context, while options referring to weights above 1500 grams do not fall within the definition of VLBW, the correct threshold for very low birth weight begins at any weight below 1500 grams. Thus, the answer that specifies a weight range starting from 1000 grams to 1499 grams accurately represents the classification of very low birth weight.

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1500 to 2500 grams

2500 to 3000 grams

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