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Description:Biotinidase cleaves the biotin group from the natural substrate, biocytin. This assay utilizes a synthetic substrate, N-biotinyl-p-aminobenzoic acid. The enzyme cleaves the biotin group off to liberate free p-aminobenzoic acid which is quantified colorimetrically. Specimen Requirements:Send 3-5 ml of serum. Ship the specimen on dry ice by overnight carrier. Specimen must be received within 24 hours of collection. Normal Range:Serum: 4.2-13.0 nmol/min/ml Turnaround Time:7 days CPT Codes and Prices:82261 Shipping InformationForms:Test Codes:4555 |