#lecithin–sphingomyelin_ratio
Lecithin–sphingomyelin ratio
Test of fetal amniotic fluid to assess for lung immaturity
The lecithin–sphingomyelin ratio is a test of fetal amniotic fluid to assess for fetal lung immaturity. Lungs require surfactant, a soap-like substance, to lower the surface tension of the fluid coating the alveolar epithelium in the lungs. This is especially important for premature babies trying to expand their lungs after birth. Surfactant is a mixture of lipids, proteins, and glycoproteins, lecithin and sphingomyelin being two of them. Lecithin makes the surfactant mixture more effective.
Thu 14th
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