Interfering Factors
- Fetal blood falsely elevates the L/S ratio.
- Exposing the specimen to light may cause falsely decreased values.
- There is some risk to having an amniocentesis performed, and this should be weighed against the need to obtain the desired diagnostic information. A small percentage (0.5%) of patients have experienced complications including premature rupture of the membranes, premature labor, spontaneous abortion, and stillbirth.
Lecithin/Sphingomyelin Ratio has been found in Davis's Lab & Diagnostic Tests
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