What is LBW?

Correct option is A

Sol. LBW stands for Low Birth Weight, and according to WHO, it is defined as a birth weight less than 2.5 kg (2500 grams), regardless of gestational age. LBW is a major risk factor for neonatal morbidity and mortality and is associated with preterm birth, intrauterine growth restriction (IUGR), or both. LBW babies require special care to avoid hypothermia, infections, and feeding issues.
Explanation of each option:
· (a) Birth weight < 2.5 kg – Correct. This is the standard definition of LBW by WHO and is used worldwide for classifying at-risk newborns.
· (b) Birth weight < 3 kg – Incorrect. Babies between 2.5 to 3 kg are considered normal weight and not classified as LBW.
· (c) Birth weight < 1.5 kg – Incorrect. This weight defines Very Low Birth Weight (VLBW), which is a more severe category.
· (d) Birth weight < 1 kg – Incorrect. This refers to Extremely Low Birth Weight (ELBW) babies, often seen in extreme prematurity.