Tryptase

Test investigation

Tryptase

Laboratory offering test

NNUH

Units

ng/mL

Also known as/Frequency of test

Mast cell tryptase

Indications

For assessment of anaphylactic/anaphalactoid reactions, however, an elevated tryptase will not distinguish between the two. Diagnosis of mastocytosis

Comments precautions

Three samples are required to be taken up to 1 hour, 3 hours and more than 24 hours of a suspected anaphylactic reaction.

Sample type

Serum

Turnaround times (TAT) Urgent/Routine/GP or OPD

1 week

Reference intervals

< 14.0 ng/mL