Pathology Handbook

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Tryptase

Laboratory:Haematology
Test Code:TRYPTASE
Specimen Types:Serum
Container Types:
SST
Adults Volume or Mass:10 mL
Minimum/Paediatric Volume or Mass:2 mL
Collection & Request Instructions:

The sample should be collected between 15 minutes and 3 hours after the suspected anaphylactic event.

Increased levels of Tryptase can normally be detected up to 3 to 6 hours after the anaphylactic reaction. Levels return to normal within 12—14 hours after release.

Transport Instructions between Sites and/or Laboratories:See Detailed Information

Separated serum can be stored at 4 degrees C for 48 hours for transport between labs. For longer periods samples must be frozen and transported frozen.

Assay Frequency:Weekly