To assess for preterm infant fetal lung maturity to assist in evaluating for potential diagnosis of respiratory distress syndrome (RDS).
Amniotic fluid (10 mL) collected in a sterile amber glass or plastic tube or bottle protected from light.
(Method: Thin-layer chromatography)
|Mature (nondiabetic)||Greater than 2:1 in the presence of phosphatidyl glycerol|
|Borderline||1.5 to 1.9:1|
|Immature||Less than 1.5:1|
Lecithin/Sphingomyelin Ratio has been found in Davis's Lab & Diagnostic Tests
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