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Phl p 12 (g212) (Timothy Grass) IgE Component
Test Code18735
CPT Codes
86008
Preferred Specimen
1 mL Serum
Minimum Volume
0.5 mL Serum
Transport Container
Serum
__SST (red-top) (preferred)
__Red-top (no gel)
__SST (red-top) (preferred)
__Red-top (no gel)
Transport Temperature
Serum: Room temperature preferred; Refrigerated acceptable;
_Frozen acceptable
_Frozen acceptable
Specimen Stability
Serum
__Room temperature: 14 Days
__Refrigerated: 14 Days
__Frozen: 30 Days
__Room temperature: 14 Days
__Refrigerated: 14 Days
__Frozen: 30 Days
Methodology
Immunoassay (IA)
Setup Schedule
A.M. Sets up 6 days a week.
Report Available
Reports in 1 to 3 days.
Clinical Significance
Some proteins present in wheat extract (f4) cross-react with grass pollen. Positive results with Phl p 12 (g212), a Timothy grass pollen protein, support this interpretation, especially if the sample is negative for IgE antibodies to Tri a 14 (f433), a protein with little or no cross-reactivity with grass pollen.
