Gynaecology & Obstetrics 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 💡 Explanation All of the following indicate Fetal lung maturity except? ✓ Correct Answer: D. Blue cells in Nile Blue Test