Ordering Recommendation

Do not use to diagnose acute influenza infections. Serological testing for influenza should be used for research and public health investigations only.

Mnemonic

FLUA PAN

Methodology

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

Performed

Mon, Wed, Fri

Reported

1-6 days

New York DOH Approval Status

This test is New York DOH approved.

Specimen Required

Patient Preparation
Collect

Serum separator tube.

Specimen Preparation

Separate serum from cells ASAP or within 2 hours of collection. Transfer 1 mL serum to an ARUP Standard Transport Tube. (Min: 0.2 mL) Parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens. Mark specimens plainly as "acute" or "convalescent."

Storage/Transport Temperature

Refrigerated. Also acceptable: Room temperature or frozen.

Unacceptable Conditions

Bacterially contaminated, heat-inactivated, hemolyzed, icteric, lipemic, or turbid specimens.

Remarks
Stability

After separation from cells: Ambient: 48 hours; Refrigerated: 2 weeks; Frozen: 1 year

Reference Interval

Test Number
Components
Reference Interval
0051074 Influenza A Virus Antibody, IgG 0.89 IV or less: Negative - No significant level of influenza A virus IgG antibody detected.
0.90-1.10 IV: Equivocal - Questionable presence of influenza A virus IgG antibody detected.  Repeat testing in 10-14 days may be helpful.
1.11 IV or greater: Positive - IgG antibodies to influenza A virus detected, which may suggest current or past infection.
0051081 Influenza A Virus Antibody, IgM 0.89 IV or less: Negative - No significant level of influenza A virus IgM antibody detected.
0.90-1.10 IV: Equivocal - Questionable presence of influenza A virus IgM  antibody detected.  Repeat testing in 10-14 days may be helpful. 
1.11 IV or greater: Positive - IgM antibodies to influenza A virus detected, which may suggest current or recent infection.

Interpretive Data

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Compliance Category

Laboratory Developed Test (LDT)

Note

Hotline History

N/A

CPT Codes

86710 x2

Components

Component Test Code* Component Chart Name LOINC
0051074 Influenza A Virus Antibody IgG 31437-7
0051081 Influenza A Virus Antibody IgM 31438-5
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Aliases

  • Flu A
  • Flu A antibodies
Influenza A Virus Antibodies, IgG & IgM