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 0257U only for Very–Long Chain Acyl–CoA Dehydrogenase (VLCAD) Enzyme Activity, from Children’s Hospital Colorado Laboratory, on a blood specimen. The test uses tandem mass spectrometry (MS/MS) to measure the levels of VLCAD enzyme activity in leukocytes to aid in diagnosis and treatment planning for VLCAD deficiency, which is a severe disorder of fatty–acid metabolism.
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