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Tri a 14 (f433) (Wheat) IgE Component
Test Code18733
CPT Codes
86008
Preferred Specimen
1 mL serum collected in a serum separator tube (SST)
Minimum Volume
0.5 mL
Other Acceptable Specimens
Red-top tube (no gel)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 14 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Immunoassay (IA)
Setup Schedule
Set up: Mon-Sat; Report available: 2-4 days
Reference Range
<0.10 kU/L
Clinical Significance
Some proteins present in wheat extract (f4) cross-react with grass pollen. Positive results with Tri a 14 (f433), a protein with little or no cross-reactivity with grass pollen, may help to confirm true sensitization to wheat.
