True about lecithin – sphingomyelin ratio is

A. Concentration of Lecithin and sphingomyelin before 34 weeks in amniotic fluid is equal

B. Concentration of Lecithin is more than sphingomyelin in amniotic fluid before 34 weeks.

C. After 32 to 34 weeks, concentration of sphingomyelin relative to Lecithin begins to rise

D. There is increased risk of Respiratory distress syndrome if L/S ratio is > 2

Correct Answer: Concentration of Lecithin and sphingomyelin before 34 weeks in amniotic fluid is equal

Description: Concentration of lecithin relative to sphingomyelin begins to rise at 32 - 34 weeks. L / S ratio < 2 suggests high risk of RDS.

Category: Gynaecology & Obstetrics

Share:

← Previous MCQ

Practice with over 200,000 questions from various medical subjects and improve your knowledge.

Attempt a mock test now

Take an exam with 100 random questions selected from all subjects to test your knowledge.

Coming Soon

Try practicing mock tests with over 200,000 questions from various medical subjects.

Attempt a mock test now

Attempt an exam of 100 questions randomly chosen from all subjects.

Coming Soon