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HelpTest Code SCOC Coccidioides Antibody, Complement Fixation and Immunodiffusion, Serum
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumOrdering Guidance
This test is a confirmatory assay for positive screening tests (ie, enzyme immunoassay).
The recommended test to evaluate for possible Coccidioides infection is COXIS / Coccidioides Antibody Screen with Reflex, Serum.
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 1.8 mL
Collection Instructions: Centrifuge and aliquot serum into plastic vial.
Specimen Minimum Volume
1.2 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 14 days |
Reference Values
COMPLEMENT FIXATION
Negative
If positive, results are titered.
IMMUNODIFFUSION
Negative
Results are reported as positive, negative, or equivocal.
Day(s) Performed
Monday through Friday
CPT Code Information
86635 x 3
Report Available
4 to 7 daysReject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
Method Name
Complement Fixation (CF)
Immunodiffusion
Forms
If not ordering electronically, complete, print, and send Infectious Disease Serology Test Request (T916) with the specimen.