All of the following indicate Fetal lung maturity except?
(A) LecithiniSphingomyelin ratio >2 (B) Positive shake test (C) Increased phosphatidyl glycerol (D) Blue cells in Nile Blue Test
(D) Ans D. Blue cells in Nile Blue TestRef: DC Dutla's textbook of Obstetrics,9't' ed.All of the above are correct except that it is the presence of more than 50 % orange coloured cells in Nile Blue test that suggests fetal pulmonary maturity.