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Method: LC-MS/MS (Liquid Chromatography/Tandem Mass Spectrometry) with creatinine normalization by Jaffe Reaction (CLIA 17D0919496); not cleared or approved by the FDA. Results reported in µg/g creatinine. Not a stand-alone diagnosis; should be interpreted in clinical context.
3-Phenoxybenzoic acid (3-PBA) is the primary urinary metabolite of pyrethroid insecticides, a large family of pesticides found in over 1,500 commercial products for agricultural, residential, and veterinary use.
