Home
HelpTest Code LAB827 Tryptase, Serum
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Tryptase, SSpecimen Type
SerumSpecimen Required
Supplies: Sarstedt Aliquot Tube, 5 mL (T914)
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions: Centrifuge and aliquot serum into a plastic vial
Additional Information: Tryptase degenerates very quickly when left in the presence of red blood cells.
Reject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 14 days |
| Refrigerated | 7 days |
Specimen Minimum Volume
0.2 mL
Special Instructions
Day(s) Performed
Monday through Friday
Specimen Retention Time
14 daysReport Available
2 to 5 daysReference Values
<11.5 ng/mL
Useful For
Evaluation of individuals with suspected mast cell activation, which may occur as a result of anaphylaxis or allergen challenge
Evaluation of patients with suspected mast cell activation syndrome
Evaluation of patients with suspected cutaneous or systemic mastocytosis
Testing Algorithm
For more information see Mast Cell Disorder: Diagnostic Algorithm, Bone Marrow.
CPT Code Information
83520
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| TRYPT | Tryptase, S | 21582-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| TRYPT | Tryptase, S | 21582-2 |
Forms
If not ordering electronically, complete, print, and send a General Request (T239) with the specimen.