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Coccidioides Antibodies (IgG, IgM), Immunodiffusion
Test Code19963
CPT Codes
86635 (x2)
Includes
Antibody to TP Antigen (IgM) and Antibody to F Antigen (IgG)
Preferred Specimen
0.5 mL serum
Minimum Volume
0.1 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Methodology
Immunodiffusion (ID)
Setup Schedule
Set up: Mon, Wed-Sat; Report available: 3-6 days
Clinical Significance
Detection of antibodies to Coccidioides antigens plays an important role in identifying patients with coccidioidomycosis. Antibodies to Coccidioides TP antigen usually appear during the first week of infection, and remain detectable for approximately 5 months; their detection indicates recent, active infection. Antibodies to Coccidioides F antigen appear within a month of infection, and remain detectable for up to a year thereafter.
