Not recommended as a stand-alone test. For initial establishment of diagnosis, refer to Coccidioides Antibodies Reflexive Panel (3001982).
Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Serum Separator Tube (SST).
Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.3 mL)
Contaminated, hemolyzed, or severely lipemic specimens.
After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
|0.9 IV or less||Negative - No significant level of Coccidioides IgG antibody detected.|
|1.0-1.4 IV||Equivocal - Questionable presence of Coccidioides IgG antibody detected. Repeat testing in 10-14 days may be helpful.|
|1.5 IV or greater||Positive - Presence of IgG antibody to Coccidioides detected, suggestive of current or past infection.|
IgG antibody usually appears by the third week of infection and may persist for years. Both tube precipitin (TP) and CF antigens are represented in the ELISA tests.
Negative fungal serology does not rule out the possibility of current infection.
|Component Test Code*||Component Chart Name||LOINC|
|0050179||Coccidioides Antibody, IgG by ELISA||27009-0|
- Cocci IgG
- Coccidioides IgG antibody
- San Joaquin Fever antibodies
- Valley fever antibodies