ARUP's Laboratory Test Directory

California Encephalitis Antibody, IgG by IFA, CSF : 0098893

Mnemonic: CAL G CSF

Methodology: Semi-Quantitative Indirect Fluorescent Antibody
Performed: Tue, Fri
Reported: 1-5 days
Specimen Required: Collect: CSF.

Specimen Preparation: Transfer 2 mL CSF to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature: Refrigerated.

Unacceptable Conditions: Contaminated, heat-inactivated, or hemolyzed specimens.

Stability (collection to initiation of testing): Ambient: 8 hours; Refrigerated: 2 weeks; Frozen: 1 year (avoid repeated freeze/thaw cycles)
Reference Interval:
Less than 1:1
Interpretive Data: This test is intended to be used as a semi-quantitative means of detecting California Encephalitis Group virus-specific IgG in CSF samples in which there is a clinical suspicion of California Encephalitis Group virus infection. A positive result for IgG may suggest current or past infection. This test should not be used solely for quantitative purposes, nor should the results be used without correlation to clinical history or other data. La Crosse virus is related within the California Encephalitis Group and generally is reactive with antibody to other viruses within this group.

See Compliance Statement B: www.aruplab.com/CS
CPT Code(s): 86651
Cross References: Encephalitis Antibody (California Encephalitis Antibody, IgG by IFA, CSF), Encephalitis, La Crosse (California Encephalitis Antibody, IgG by IFA, CSF), La Crosse Encephalitis (California Encephalitis Antibody, IgG by IFA, CSF)