Very low bih weight is less than: September 2009, March 2013 (g)
**Core Concept**
Very low birth weight (VLBW) is a critical term in neonatology, referring to infants born with a birth weight below a specific threshold, which has significant implications for their health and survival. This concept is essential in understanding the needs and care required for these vulnerable newborns.
**Why the Correct Answer is Right**
The correct threshold for VLBW is 1500 grams. This is because infants with a birth weight below 1500 grams are at a higher risk of developing complications such as respiratory distress syndrome, intraventricular hemorrhage, and necrotizing enterocolitis. The lower the birth weight, the greater the risk of these complications. The 1500-gram threshold is widely accepted as the cutoff for VLBW, and it is used to guide healthcare providers in providing appropriate care and management for these infants.
**Why Each Wrong Option is Incorrect**
**Option A:** 1000 grams - This option is incorrect because, while infants with a birth weight below 1000 grams are considered extremely low birth weight (ELBW), they do not meet the criteria for VLBW.
**Option B:** 2000 grams - This option is incorrect because a birth weight of 2000 grams is actually considered low birth weight (LBW), but not VLBW.
**Option C:** 2500 grams - This option is incorrect because a birth weight of 2500 grams is actually considered normal birth weight, and does not meet the criteria for VLBW.
**Clinical Pearl / High-Yield Fact**
The World Health Organization (WHO) defines VLBW as birth weight less than 1500 grams, and ELBW as birth weight less than 1000 grams. Understanding these definitions is crucial for healthcare providers to provide appropriate care and management for these vulnerable newborns.
**Correct Answer: C. 2500 grams**