This is a Proprietary Laboratory Analyses (PLA) code, meaning that the code applies to only one unique lab test made by a specific manufacturer or performed by a specific lab. Report 0457U only for PFAS (Forever Chemicals) 9 Panel from Quest Diagnostics®. This service uses liquid chromatography with tandem mass spectrometry (LC–MS/MS) on a blood plasma or serum sample. This test measures the levels of nine perfluoroalkyl substances (PFAS). PFAS are man–made chemicals that have been used in industry and consumer products, such as nonstick cookware, carpets, and firefighting foams.
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