Arbovirus Antibodies, IgG, Serum

Abbrev Code:ARMISC   
Order Code:LAB4909Order Name:Send Outs Misc Test
Synonyms:Encephalitis Antibodies, IgG
Methodology:Indirect fluorescent antibody/Enzyme linked immunosorbent assay
CPT Codes: 86651 x1, 86652 x1, 86653 x1, 86789 x1, 86654 x1
Test Includes:California Encephalitis Antibody, Eastern Equine Encephalitis Antibody, St. Louis Encephalitis Antibody, Western Equine Encephalitis Antibody, West Nile Virus Antibody
Turnaround Time:Specimens are sent to reference laboratory Mon-Sat; results are reported within 1-5 days.
Special Instructions:Parallel testing is preferred. Label samples as acute or convalescent. Convalescent samples must be received within 30 days of acute samples.

Collection Instructions

Optimal Volume:2 mL
Minimum\Peds Volume:1 mL
Container:Red or gold (gel)
Alternate Containers: Red (no gel)
Causes for Rejection:Severely lipemic, hemolyzed or contaminated specimen.

Processing and Shipping

Specimen Processing:Within 2 hour of collection, centrifuge and aliquot 1 mL, 0.4 mL minimum. Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature.
Stability:After separation from cells: 48 hours at room temperature; 2 weeks refrigerated; 1 year frozen.
Test Performed at or Referral Lab Lab Sendouts  (ARUP)
Referral Lab number:2001593


Reference Range:

California Encephalitis Antibody, IgG

Less than 1:16

St. Louis Encephalitis Antibody, IgG

Less than 1:16

Western Equine Encephalitis Antibody, IgG

Less than 1:16

Eastern Equine Encephalitis Antibody, IgG

Less than 1:16

West Nile Virus Antibody, IgG by ELISA, Serum

1:29 IV or less – Negative. No significant level of West Nile Virus IgG Antibody detected.

1:30 – 1.49 IV – Equivocal. Questionable presence of West Nile Virus IgG Antibody detected. Repeat testing in 10-14 days may be helpful

1:50 IV or greater – Positive. Presence of West Nile Virus IgG Antibody detected, suggestive or current or past infection



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