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Laboratory Medicine

Test Directory / Tryptase Activity

Tryptase Activity

Brown clotted serum, gel barrier (EDTA is NOT ACCEPTABLE)

TestTryptase Activity
Common AbbreviationsTRY
ProfileNA
Tube typeBrown clotted serum, gel barrier
Clinical IndicationInvestigation of anaphylactic reactions and mastocytosis.
Specimen TypeBlood
Sample typeSerum
Minimum Volume0.5mL
Special PrecautionsSample must be sent to the laboratory ASAP after collection. Samples received after 3 hours from collection are not suitable for analysis. For confirmation of an anaphylactic reaction samples should be collected at 1 hour, 3 hours and 24 hours post reaction.
StabilityContact Referral Laboratory
Turnaround Time7 days
LaboratorySt James's University Hospital Beckett Street Leeds LS9 7TF 0113 392 3414
Reference IntervalContact Referral Laboratory
LimitationsContact Referral Laboratory
Notes
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Maternity access at York Hospital - Saturday 22 February

On Saturday 22 February, 8am-6pm, there will be a temporary change of vehicle access to the maternity unit at York Hospital. Access via entrance 2 will be closed to allow essential works to be completed. 

If you are attending the maternity unit at York on this day, please drive in via the entrance for A&E (marked blue light priority).

The multi-storey car park will not be affected by this change, and any non-urgent visitors should continue to park in this area.