Tryptase

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Testing Laboratory

Auckland Te Toka Tumai | Auckland Hospital

Department

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.

Associated Tests

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