ARUP's Laboratory Test Directory

Influenza A Virus Antibody, IgM : 0051081

Mnemonic: FLUA M

Methodology: Enzyme-Linked Immunosorbent Assay
Performed: Mon, Wed, Fri
Reported: 1-6 days
Specimen Required: Collect:  One 4 mL serum separator tube.

Transport:  1 mL serum at 2-8°C.  (Min: 0.2 mL)  Submit specimen in an ARUP Standard Transport Tube.

Pediatric Collection/Transport:  0.1 mL serum at 2-8°C.

Remarks:  Ambient and frozen specimens are also acceptable.  Separate serum from cells ASAP.  Acute and convalescent specimens must be labeled as such; parallel testing is preferred and convalescent specimens must be received within 30 days from receipt of the acute specimens.  Please mark specimen plainly as "acute" or "convalescent."

Unacceptable Conditions:  Plasma.  Hemolyzed, lipemic, icteric, turbid, bacterially contaminated, or heat-inactivated specimens.

Stability:  After separation from cells: Ambient: 2 days; Refrigerated: 2 weeks; Frozen: 1 year
Reference Interval:
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.
CPT Code(s): 86710
 
 

 

 

 
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