Test ID: ZG594
CPT code: 83789
Specimen Type: 24 hour urine
Frequency: Setup: Tues, Thurs; analytic time 3 days
Instructions: 5.0 mL from 24 hour urine collection. No preservative. Send refrigerated.
Text: Useful in screening for and monitoring mastocytosis and disorders of
systemic mast-cell activation, such as anaphylaxis and other forms of
severe systemic allergic reactions.
Components: Z3071 N-Methylhistamine, U; Z3072 Collection Duration; Z3073 Urine Volume; Z3074 Creatinine Conc; Z7911 Creatinine, 24 Hours.
Methodology: Liquid Chromatography-Tandem Mass Spectrometry (LC-MS/MS)
Enzymatic Colorimetric Assay