This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: New born infants, Subject name: Pediatrics
Fetal Lung Maturity assessed by all except 
Select and explain. 
A. Measurement of alpha feto protein, B. Lecithin:sphingomyelin ratio, C. Measurements of amnotic fluid creatinine, D. Phosphatidyl choline concentration in amniotic fluid
A: Measurement of alpha feto protein
Answer: A: Measurement of alpha feto protein 
Explanation: Reference: GHAI Essential pediatrics, 8th edition