<prompt> pH of amniotic fluid is -6.26.87.28.2  <response>: Ans. is c i.e., 7.2 pH of amniotic fluid is 7.0-7.5. The volume of amniotic fluid at term is 800 mL. An osmolarity of 250 mOsmolL of amniotic fluid is suggestive of fetal lung maturity. Fetal urine is the major component of amniotic fluid. 