Tryptase, Total
| Label Mnemonic: | TRYP |
| Epic code: | LAB4211 |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Serum
Collection Medium:
 |
| Red top tube 5 mL (Clot Activator) |
Minimum:
Preferred Minimum: 0.5 mL serum
Absolute Minimum: 0.2 mL serum
Turn Around
Time:
2 – 5 days upon receipt at reference laboratory.
Reference Range:
<11.5 ng/mL
Interpretive Data:
Transient tryptase concentrations greater than or equal to 11.5 ng/mL may be consistent with mast cell activation in the context of anaphylaxis or allergen challenge; measurement of tryptase in specimens obtained 1 to 6 hours and at least 24 hours after the episode may be useful in demonstrating a return to baseline concentrations.
Basal tryptase concentrations greater than or equal to 11.5 mg/mL may be consistent with cutaneous mastocytosis.
Basal tryptase concentrations greater than or equal to 20 ng/mL may be consistent with systemic mastocytosis.
Methodology:
Quantitative Fluorescent Enzyme Immunoassay
CPT Code:
83520