When an L/S ratio by thin-layer chromatography is performed,a mature fetal lung will show:
A) Sphingomyelin twice as concentrated as lecithin
B) No sphingomyelin
C) Lecithin twice as concentrated as sphingomyelin
D) Equal concentrations of lecithin and sphingomyelin

Question

Quizplus · Accepted Answer

A mature fetal lung will have lecithin as the predominant component, with concentrations of lecithin being twice as much as sphingomyelin. This indicates a mature pulmonary surfactant system, which is necessary for proper lung function after birth. The ratio of lecithin to sphingomyelin is used as a marker for fetal lung maturity and can help predict the risk of respiratory distress syndrome in premature infants.

When an L/S Ratio by Thin-Layer Chromatography Is Performed,a Mature