Collection Notes: Hemolyzed or postmortem specimens are not acceptable. Samples should be collected between 15 minutes to 3 hours after the event suspected of causing mast cell activation. Separate serum from cells within 3 hours of collection.
Clinical Utility: Tryptase is useful in determining mast cell activation in diseases such as anaphylaxis, mastocytosis, urticaria, and asthma.
Serum (1 mL)
Refrigerated 7 Days
Frozen 30 Days
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