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Intermediate Technical In the Industry Vocabulary Test

SGA

Also written as: SGA — Small for Gestational Age

Small for gestational age; birth weight below the 10th percentile for gestational age.

Full Definition

Small for gestational age (SGA) describes infants whose birth weight falls below the 10th percentile for their gestational age based on standardized growth charts. This condition may result from intrauterine growth restriction, maternal factors, placental insufficiency, or genetic causes. SGA infants are at increased risk for hypoglycemia, hypothermia, polycythemia, and long-term neurodevelopmental issues. The designation is distinct from low birth weight, which is based solely on absolute weight.

Usage

Usage note: Always specify percentile when possible; distinguish from absolute weight classifications.

In Context

  • "The 36-week SGA infant required frequent glucose monitoring due to increased hypoglycemia risk." — Nursing care plan
  • "Despite being SGA, the infant demonstrated good feeding tolerance and steady weight gain." — Discharge summary

Also known as

small for gestational age growth restricted

Contrasted with

AGA LGA appropriate for gestational age large for gestational age

Don't confuse with

IUGR low birth weight VLBW
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