This is a Proprietary Laboratory Analyses (PLA) code, meaning that the code describes only one unique lab test made by a specific manufacturer or performed by a specific lab. Code 0038U describes the Sensieva Droplet™ 25 OH vitamin D2/D3 microvolume LC/MS assay from InSource Diagnostics, which is a quantitative test for vitamin D on a very small serum sample using liquid chromatography with tandem mass spectrometry (LC–MS/MS).
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