This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Preterm Labour, Subject name: Gynaecology & Obstetrics
Drug that is used for fetal lung maturity is:- 
Select and explain. 
A. Dexamethasone, B. Folic acid, C. Beclomethasone, D. Micronized progesterone
A: Dexamethasone
Answer: A: Dexamethasone 
Explanation: Maternal administration of coicosteroid is advocated where the pregnancy is less than 34 weeks. This helps in fetal lung maturation so that the incidence of RDS, IVH, NEC, and PDA are minimized. Doses: Dexamethasone- 6mg IM every 12 hours for 4 doses is given Betamethasone- 12mg IM 24 hours apa for 2 doses is given