Coccidioides Antibodies IgM by Immunoassay, CSF
Use to screen for the presence of coccidioidal IgM antibodies in CSF. Not recommended as a standalone test. For comprehensive diagnostic testing that includes immunoassay (IgM and IgG), complement fixation, and immunodiffusion, refer to Coccidioides Antibodies Panel, CSF (3000061).
New York DOH Approval Status
Transfer 1 mL CSF to an ARUP Standard Transport Tube. (Min: 0.3 mL). Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens.
Other body fluids. Contaminated, hemolyzed, xanthochromic, or severely lipemic specimens.
Mark specimens plainly as "acute" or "convalescent".
Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Enzyme-Linked Immunosorbent Assay (ELISA)
|0.2 IV or less||Negative - No significant level of Coccidioides IgM antibody detected.|
|0.3 IV or greater||Positive - Presence of IgM antibody to Coccidioides detected, suggestive of current or recent infection.|
In most symptomatic patients, IgM antibodies usually appear by the second week of infection and disappear by the fourth month. Both tube precipitin (TP) and CF antigens are represented in the ELISA tests.
This immunoassay uses recombinant and native Coccidioides antigens, including CF and TP antigens.
|Component Test Code*||Component Chart Name||LOINC|
|3000063||Coccidioides Antibody IgM ELISA, CSF||16639-7|
- Coccidioides immitis
- Valley fever