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Title 21 → Chapter I → Subchapter H → Part 862 → Subpart B → §862.1455 |
Title 21: Food and Drugs
PART 862—CLINICAL CHEMISTRY AND CLINICAL TOXICOLOGY DEVICES
Subpart B—Clinical Chemistry Test Systems
§862.1455 Lecithin/sphingomyelin ratio in amniotic fluid test system.
(a) Identification. A lecithin/sphingomyelin ratio in amniotic fluid test system is a device intended to measure the lecithin/sphingomyelin ratio in amniotic fluid. Lecithin and sphingomyelin are phospholipids (fats or fat-like substances containing phosphorus). Measurements of the lecithin/sphingomyelin ratio in amniotic fluid are used in evaluating fetal maturity.
(b) Classification. Class II.