Gynaecology & Obstetrics Physiological Changes of Pregnancy 5c4296a0 Surfactant appears in amniotic fluid at the gestational age of: A 28 wks B 32 wks C 36 wks D 38 wks High-Yield Explanation Surfactant- production stas at 20 weeks Appears (found significantly) in Amniotic fluid at 24-28 weeks