Test Directory

Test Code
CITRS
Test Name
Allergen Profile Citrus
CPT Codes
86003 X 5
Included Tests
  • Lemon Allergen (F208) IgE
  • Grapefruit Allergen (F209) IgE
  • Orange Allergen (F33) IgE
  • Tangerine Allergen IgE
  • Lime Allergen IgE
Expected Turnaround Time
See individual test listings
Clinical Utility
Allergen specific IgE levels (kU/L) provide 95% Positive Predictive Values (PPV) for clinical reactivity to the specific allergen challenge.
Specimen and Container Info

Specimen Type: Serum

Preferred Collection Container: Gold Top, Serum Separator

Minimum Acceptable Volume: 2.6 mL

Processing and Submission Instructions

Separator tubes: Contains clot activator and gel for separating serum from cells, but not anticoagulant. Separate serum from cells as soon as the clot has formed (30 minutes). If specimen is centrifuged before clotting is complete, a fibrin clot will form on top of the cell. This may cause the gel barrier to not be intact and could cause improper separation of serum and cells, possibly affecting test results.

Stability Requirements

Refrigerated

7 days

Frozen

Samples are frozen after testing is complete and held on-site for 2 months.

Methodology
Fluorescent Enzyme Immunoassay
Reference Intervals
See individual test listings
Performing Location
Roble Road Core Laboratory
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 6 times per week