Tryptase (TRYPT)

Test Code
LAB4415

Quest Code
34484

CPT Codes
83520

Preferred Specimen
1 mL serum in plain red top tube

Minimum Volume
0.5 mL

Instructions
Samples should be obtained between 15 minutes and 3 hours after the event suspected of causing mast cell activation. When sample is drawn, separate serum from cells within 3 hours of collection.

Transport Container
Transport tube

Transport Temperature
Frozen

Specimen Stability
Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 30 days

Methodology
Immunoassay (IA)

Setup Schedule
Monday-friday

Reference Range
<11.0 mcg/L

Clinical Significance
Tryptase concentrations are increased with immediate hypersensitivity (anaphylaxis), acute allergen challenge, and mastocytosis.

Performing Laboratory
Quest Diagnostics - South Region




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.