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83661 L/s ratio fetal lung

Pathology & Lab

Also known as: L/S ratio, lecithin/sphingomyelin ratio

Determination of lecithin-to-sphingomyelin (L/S) ratio in amniotic fluid by thin-layer chromatography for assessment of fetal lung maturity.

Clinical Context

Assessment of fetal lung maturity in high-risk obstetric conditions requiring preterm delivery. Ratio greater than 2:1 indicates low risk of respiratory distress syndrome.

RVU Breakdown

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Specialties

PathologyObstetricsMaternal-Fetal Medicine

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CPT® is a registered trademark of the American Medical Association. Data sourced from CMS Physician Fee Schedule RVU26A. Descriptions, synonyms, and clinical context are original content by RVU Edge.