All of the following indicate Fetal lung maturity except?
LecithiniSphingomyelin ratio >2
Positive shake test
Increased phosphatidyl glycerol
Blue cells in Nile Blue Test
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.