The one measurement of fetal maturity that is not affected by a 'bloody tap' during amniocentesis is:
(A) L/S ratio (B) Phosphatidyl glycerol (C) α-fetoprotein (D) Bilirubin as a measured by DOD 450
(B) The best test to detect fetal lung maturity in diabetic mothers is presence of phophatidyl glycerol (PG) in amniotic fluid. If PG is present in amniotic fluid fetal lungs are considered mature and vice versa.