Tryptase (Mast Cell, Anaphylaxis)
Phlebotomy Requirements
Sample must be received in the lab within 3 hours of venepuncture unless centrifuged before delivery to the laboratory.
Collection
Hospital or Community if Centrifuged
Sample container
All Colchester & Ipswich samples: 7.5ml Brown Serum. Min vol: 2ml.
Preservative
Serum
Site
Colchester Request*: Sheffield, TAT: 1w. Ipswich Request: Addenbrookes, TAT: 3d.
Notes
Non-fasting. No specific patient preparation required. FOR ANAPHYLATIC PATIENTS, a sample should be taken as soon as possible after emergency treatment has started. A second sample ideally within 1 to 2 hours (but no later than 4 hours) from the onset of symptoms. Ensure each specimen is labelled with its collection time to avoid confusion. The time of the anaphylactic event must be recorded on the request.
