Arbovirus Antibodies, IgG and IgM, Serum


Abbrev Code:ARBOSER GM   
Order Code:LAB1051Order Name:Arbovirus Antibodies, IgG and IgM, Serum
Synonyms:LHE LAB1388; Encephalitis Antibodies, IgG and IgM
Methodology:Semi-quantitative indirect fluorescent antibody/Semi-quantitative 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 the reference laboratory Mon-Sat; testing is performed Tue and Fri; results are reported within 1-5 days.
Special Instructions:Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of acute specimens. Mark specimens plainly as "acute" or "convalescent". 
Compliance:

This test uses an in vitro diagnostic (IVD) that has been cleared or approved by the FDA.


Collection Instructions

Specimen:Blood
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 hours of collection, centrifuge an aliquot 1 mL, 0.5 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:2001594


Interpretive

Reference Range:
Antibodies IgG IgM Method
California Encephalitis <1:16 <1:16 IFA
St. Louis Encephalitis <1:16 <1:16 IFA
Western Equine Encephalitis <1:16 <1:16 IFA
Eastern Equine Encephalitis <1:16 <1:16 IFA
West Nile Virus:
   Negative; No significant
   level of antibody detected.
    Equivocal; Questionable
    presence of antibody 
    detected. Repeat testing
    may be helpful.
    Positive; Presence of 
    antibody suggestive of
    current or recent infection.

Negative
1.29 IV or
less


Equivocal
1.30-1.49 IV



Positive
1.50 IV or
greater

Negative
0.89 IV or
less


Equivocal
0.90-1.10 IV



Positive
1.11 IV or
greater

ELISA
 
Use:Aids in the diagnosis of infection with arboviruses.


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