ARUP's Laboratory Test Directory

Japanese Encephalitis Virus Antibodies, IgG and IgM by ELISA : 2005689

Mnemonic: JPN GM

Methodology: Semi-Quantitative Enzyme-Linked Immunosorbent Assay
Performed: Thu
Reported: 1-8 days
Specimen Required: Collect: Serum separator tube

Specimen Preparation: Separate serum from cells ASAP or within 2 hours of collection. Transfer 0.5 mL serum to an ARUP Standard Transport Tube. (Min: 0.15 mL)

Storage/Transport Temperature: Refrigerated

Unacceptable Conditions: Contaminated or heat-inactivated specimens

Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 6 months (avoid repeated freeze/thaw cycles)
Reference Interval:
Effective January 17, 2012
Test Number Components Reference Interval
Japanese Encephalitis Virus Antibody IgG
Japanese Encephalitis Virus Antibody IgG
1.9 IV or less Negative - No significant level of detectable Japanese encephalitis virus (JEV) IgG antibody
2.0 - 4.9 IV Equivocal - Questionable presence of JEV IgG antibody. Repeat testing in 10-14 days may be helpful
5.0 IV or greater Positive - JEV IgG antibody detected, which may indicate a current or past infection
Japanese Encephalitis Virus Antibody IgM
Japanese Encephalitis Virus Antibody IgM
3.9 IV or less Negative - No significant level of detectable Japanese encephalitis virus (JEV) IgM antibody
3.9 IV or less Equivocal - Questionable presence of JEV IgM antibody. Repeat testing in 10-14 days may be helpful
6.1 IV or greater Positive - JEV IgM antibody detected, which may indicate a current or recent infection. A low IgM antibody level may occasionally persist for more than 12 months post-infection

Interpretive Data: Refer to report

See Compliance Statement D: www.aruplab.com/CS
CPT Code(s): 86790 X 2