CPT/HCPCS
83520
Order Code
CH711
Turnaround Time
24 hours
Specimen Requirements
Specimen Source
Serum
Transport Container
(Specimen Container)
(Specimen Container)
SST (Tiger Top)
Preferred Specimens
1 mL frozen serum
Minimum Volume (uL)
0.5 mL
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Transport Frozen
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | Unacceptable |
| Refrigerated | 7 days |
| Frozen | 30 days |
Special Instructions
Samples should be obtained between 15 minutes and 3 hours after the event suspected of causing mast cell activation. When sample is drawn, separate serum from cells within 3 hours of collection.
Test Details
Methodology
Immunoassay (IA)
Clinical Significance
Tryptase concentrations are increased with immediate hypersensitivity (anaphylaxis), acute allergen challenge, and mastocytosis.
Reference Ranges
<11.0 mcg/L
