Question

A low birth weight baby is one who weighs

• A. less than 2500 gms
• B. less that 3000 gms
• C. less than 2000 gms
• D. less than 2250 gms

Hint:

The threshold for low birth weight is exactly 2500 grams.
Any birth weight below this value is classified as LBW, requiring close clinical monitoring.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Birth weight is a key indicator of a newborn's health, development, and survival.
The World Health Organization (WHO) has established specific weight categories to identify infants who may require specialized medical care.

Step 2: Detailed Explanation:
According to international clinical standards, newborns are categorized based on their birth weight:
Normal Birth Weight: Typically ranges from $2500\text{ g}$ to $4000\text{ g}$.
Low Birth Weight (LBW): Defined by the WHO as a birth weight of less than $2500\text{ g}$ (equivalent to $5\text{ lbs}$), regardless of gestational age.
Low birth weight can be caused by premature birth (born before 37 weeks of gestation) or intrauterine growth restriction (IUGR), where the fetus does not grow at a normal rate in the womb.
Infants born below this threshold are at a higher risk for neonatal complications, such as hypothermia, hypoglycemia, respiratory distress, and developmental delays.
Other sub-classifications include:
- Very Low Birth Weight (VLBW): Less than $1500\text{ g}$.
- Extremely Low Birth Weight (ELBW): Less than $1000\text{ g}$.

Step 3: Final Answer:
A low birth weight baby is clinically defined as one who weighs less than 2500 gms.