Influenza A/B Virus Abs.

Label Mnemonic:	INFLU
Epic code:	LAB3420
Downtime form:	A-1a Doctor/Provider Orders - Pathology Core and Specialty Care Nursery

Commercial Mailout Laboratory
6240-8 RCP
356-8593

Specimen(s):

Serum

Specimen Instructions:

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."

Collection Medium:

Red top tube 5 mL (Clot Activator)

Minimum:

Preferred Minimum: 1.0 mL serum
Absolute Minimum: 0.05 mL serum

Rejection Criteria:

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

Testing Schedule:

Test performed on Monday, Wednesday and Friday.

Turn Around Time:

1-6 days upon receipt at reference laboratory.

Reference Range:

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. 

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.

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

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

Methodology:

Semi-Quantitative Enzyme-Linked Immunosorbent Assay

CPT Code:

86710(x4)