Tryptase concentrations are increased with immediate hypersensitivity (anaphylaxis), acute allergen challenge, and mastocytosis.
1.0 mL Serum from a Red Top Tube in a Plastic Vial
7 days Refrigerated
30 days Frozen (transport)
Samples should be obtained between 15 minutes and 3 hours after the event suspected of causing mast cell activation.
Separate serum from cells within 3 hours of collection.
0.5 mL Serum
<11 ng/mL
Tryptase concentrations are increased with immediate hypersensitivity (anaphylaxis), acute allergen challenge, and mastocytosis.
2 to 3 days
00917153
83520