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Lab Manual for UCSF Clinical Laboratories

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Total Tryptase

Item Value
Approval req'd? No
Available Stat? No
Test code TTRP
Performed by Quest
Sendout? Yes
Method Fluoroenzyme Immunoassay
Container type Red top
Amount to Collect 2 mL blood
Sample type Serum
Preferred volume 1 mL serum
Min. Volume 0.5 mL serum
Processing notes Aliquot serum and freeze. Ship frozen to China Basin.
Units ng/mL
Normal range 2-10 ng/mL
Stability Room temperature 2 days, refrigerated 5 days, frozen 1 month.
Additional information Tryptase concentrations are increased with immediate hypersensitivity (anaphylaxis), acute allergen challenge, and mastocytosis.

When it is necessary to distinguish mature tryptase from total tryptase, an order for a miscellaneous outside lab test (MOLT) can be sent requesting an assay for a tryptase level from the clinical laboratory at Virginia Commonwealth University which reports out both mature trypase and total tryptase in their assay.


phone (804) 828-9685.
CPT coding 83520-90
Last Updated 8/18/2015 1:39:16 PM
Entry Number 1526
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