Test ID: Z0653
CPT code: 83520
Specimen Type: SST, Lav (EDTA) OR green-top (heparin)
Frequency: 2 – 4 days
Instructions: 0.7 mL Serum or Plasma from SST, Lav (EDTA) OR green-top (heparin), Refrigerated. Min 0.5 mL.
Text: Measures total tryptase (alpha & beta tryptase). Tryptase is the most abundant protein component of human mast cell secretory granules. Serum levels generally reflect the extent of mast cell activation either by IgE- or non-IgE-mediated mechanisms. Basophils also produce small amounts of tryptase.