learn.howToCalculate
learn.whatIsHeading
Gestational age is pregnancy duration from last menstrual period. It's critical for fetal development assessment and delivery timing.
단계별 가이드
- 1Naegele's rule: Add 7 days to LMP, then add 9 months
- 2Or: LMP + 280 days ≈ EDC
- 3Verify with first-trimester ultrasound for accuracy
풀어진 예시
입력
LMP January 1
결과
EDC ≈ October 8 (280 days later)
Average pregnancy duration
피해야 할 일반적인 실수
- ✕Using conception date instead of LMP
- ✕Ignoring ultrasound confirmation of dates
자주 묻는 질문
Why measure gestational age precisely?
Guides timing for pregnancy care, delivery decisions, neonatal viability judgments.
Is Naegele's rule always accurate?
Accurate ±2 weeks for first trimester dating. Less accurate with irregular cycles or uncertain LMP.
계산할 준비가 되셨나요? 무료 Gestational Age 계산기를 사용해 보세요
직접 시도해 보세요 →