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Test Code: Trypt Preferred Name Tryptase

No
N/A
2 weeks approx
2 weeks
Medicare Item
N/A

Test Tubes

ImageSpecimen TypeSpecimen VolumeTube Type
Blood (adult)7 mLSST with gel 8.5 mL (Dark Yellow Top)
Blood (paediatric)2 mL4x SST with gel 600 uL Paed (Red or Yellow top)
Blood (neonatal)2 mL4x SST with gel 600 uL Paed (Red or Yellow top)
Usually collect 1-4 hours post anaphylatic shock.


Please provide clinical details - eg, time taken in relation to anaphylatic reaction & list drugs taken.

APPLICATION:  To identify anaphylaxis as a cause of collapse or death, eg, during anaesthesia, after insect sting, administration of drugs or biological agents (densitisation vaccines).

INTERPRETATION:  Increasd tryptase levels indicate mast cell degranulation with mediator release, thereby demonstrating an allergic basis for the reaction.  A negative result does not exclude an allergis basis.

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