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Test Code TRYPT Tryptase, Serum

Additional Codes

Mayo Test ID
TRYPT

Reporting Name

Tryptase, S

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.

Method Name

Fluorescence Enzyme Immunoassay (FEIA)

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Serum


Specimen 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.


Specimen Minimum Volume

0.2 mL

Specimen Stability Information

Specimen Type Temperature Time
Serum Frozen (preferred) 14 days
  Refrigerated  7 days

Reject Due To

Gross hemolysis OK
Gross lipemia OK
Gross icterus OK

Reference Values

<11.5 ng/mL

Day(s) Performed

Monday through Friday

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

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

Report Available

2 to 5 days