Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Immunology
Delphic Registration Code (Alpha Code)
TRYP
Test Code (Numeric Code)
7333
Laboratory Handling
Phlebotomy
Serum / Plasma
Transport
Ambient
Laboratory
LabPlus Immunochemistry
Sample Stability
Ambient temperature (18-25°C) for 2 days; chilled (2-8°C) for a week. Longer storage at -20°C. Avoid repeat freeze thaw cycles.
Synonyms
Mast cell tryptase
Serum tryptase
Total tryptase
Turnaround Time
2 days
Test is performed Monday, Wednesday and Friday
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- SST II (Gold Cap)
Acceptable
- EDTA (Lavender Cap)
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
Preferred Sample Volume (ml)
4
Minimum Sample Volume (ml)
1
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- SST II (Gold Cap)
Acceptable
- EDTA (Lavender Cap)
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
Preferred Sample Volume (ml)
1
Minimum Sample Volume (ml)
0.5
Additional Specimen Information
To assist in interpreting the tryptase results, take at least two samples: one within 30 minutes of suspected anaphylaxis and another at six hours. A further sample should be collected at least 24 hours following the episode.
Last updated: 12/05/2026