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Coccidioides Antibody CF (Complement Fixation)

Valley Fever, San Joaquin Fever

Test Codes

EPIC: LAB1231624, Beaker: XCOCC, ARUP #50170

Department

Send Outs

Instructions

Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute samples. Please mark sample plainly as "acute" or "convalescent."

Specimen Collection Criteria

Collect (preferred specimen): One Gold-top SST tube.
Also acceptable: One plain Red-top tube. 

Physician Office/Draw Specimen Preparation

Let serum specimens clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Preparation for Courier Transport

Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.15 mL)

Rejection Criteria

• Other body fluids.
• Hemolyzed specimens.
• Severely lipemic specimens.
• Specimens not collected and processed as indicated.

In-Lab Processing

Let serum specimens clot 30-60 minutes then centrifuge to separate serum from cells within two hours of collection. Transfer serum to a plastic transport tube and refrigerate (2-8°C or 36-46°F).

Transport: 1.0 mL serum, refrigerated (2-8°C or 36-46°F). (Minimum: 0.15 mL)

Storage

Specimen Stability for Testing:

Room Temperature (20-26°C or 68-78.8°F): 48 hours
Refrigerated (2-8°C or 36-46°F): 14 days
Frozen (-20°C/-4°F or below): 1 year

Specimen Storage in Department Prior to Disposal:

Specimen retention time is determined by the policy of the reference laboratory. Contact the Send Outs Laboratory with any questions.

Laboratory

Sent to ARUP Laboratories, Salt Lake City, UT.

Performed

Sunday – Saturday.
Results available in 2-4 days.

Reference Range

Less than 1:2.

Test Methodology

Semi-Quantitative Complement Fixation.

CPT Codes

86635
LOINC:  33380-7, 5096-3, 93225-1, 93224-4, 93226-9, 93227-7, 93226-9

Contacts

Last Updated

8/26/2024