Term

Pre term: 24 to 36 weeks

• extremely pre-term - 22 to 27 weeks
• very pre-term - 28 to 31 weeks
• Pre term - 32 to 36 weeks

Term: 37 to 41 weeks

Post term: 42 weeks+

Fetus is considered mature when:

• it can maintain an independant existence outside the uterus
• Breathe/maintain oxygenation
• Feed/maintain blood sugars
• Maintain body temp

Fetus is considered viable when:

• It can survive extra-uterine

Weight

Between 3-4kg is normal

LBW - <2500g