Gynaecology & Obstetrics Best method for the diagnosis of lung maturity is? A L/S ratio in amniotic fluid B Phosphtidyl glycerol estimation in amniotic fluid C Bilirubin in amniotic fluid D Amniotic fluid creatinine 💡 Explanation Best method for the diagnosis of lung maturity is? ✓ Correct Answer: B. Phosphtidyl glycerol estimation in amniotic fluid