Test Overview
Test Methodology

Immunofluorescence

Test Usage

Determination of recent infection when isolation of the organism by culture is unsuccessful.

Reference Range *

IgG: <1:10; IgM: <1:10. The presence of IgM class antibodies or a fourfold or greater rise in paired sera IgG titer indicates recent infection. The presence of demonstrable IgG generally indicates past exposure.

Test Limitations

Incidence of influenza virus infections is seasonal in the United States and usually occurs only from November - March.

Test Details
Days Set Up
Tuesday, Friday
Analytic Time

2 - 5 days

Soft Order Code
SFLA, SFLB
Synonyms
  • INFLUENZA VIRUS A Ab, IgG, IgM
  • INFLUENZA VIRUS B AB, IGG, IGM
  • SFLA-D
  • SFLB-D
  • INFLUENZAE A IgG
  • INFLUENZAE A IgM
  • INFL A AB, IGG, IGM, SERUM
  • INFLUENZA B VIRUS AB, IgG
  • INFLUENZA B VIRUS AB, IGM
  • INFL B AB IGG, IGM, SERUM
Laboratory
Sendout
Reference Laboratory
Mayo SFLA (8169) Type A, Mayo SFLB (8175) Type B
Section
Special Testing
Specimen Requirements
Collection Instructions

Collect specimen in a Red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.

Yellow Top Tube
Normal Volume
0.25 ml serum
Minimum Volume
0.15 mL serum
Additional Information

Test sent to Mayo Medical Laboratories.

Billing
CPT Code
86710 x2 each type
Fee Code
20428 SFLA, 20429 SFLB
LOINC
Z263-4 SFLA, Z5-9 SFLB
NY State Approved
No