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Test Code TRYPA Tryptase, Autopsy, Serum

Reporting Name

Tryptase, Autopsy

Useful For

Evaluation of autopsy cases in which anaphylaxis in the context of allergen exposure or mast cell activation is a suspected cause of death

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type


Specimen Required

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 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 Special Container
Serum Frozen (preferred) 14 days
  Refrigerated  7 days

Reference Values

No established reference values

Day(s) Performed

Monday through Friday

Test Classification

This test has been modified from the manufacturer's instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
TRYPA Tryptase, Autopsy 21582-2


Result ID Test Result Name Result LOINC Value
TRYPA Tryptase, Autopsy 21582-2

Report Available

2 to 5 days

Method Name

Fluorescence Enzyme Immunoassay (FEIA)