Influenza A/B Antigen


Sunquest Code:FLUAGN  
Epic Code:LAB3476Epic Name:Influenza A/B Antigen
Synonyms:Rapid Flu; Rapid Influenze; FLUAGN
Methodology:Fluorescent immunoassay
CPT Code:----------CPTCODES HERE----------
Turnaround Time:During respiratory season, results are reported the same day as receipt in the lab.
Special Instructions:This test is performed routinely during respiratory virus season ONLY, approximately November-April. False-positive (and true-negative) results are more likely to occur when disease prevalence in the community is low, which is generally at the beginning and end of the respiratory season during the summer. If clinically necessary, patients with negative rapid influenza A/B antigen results can have the three virus PCR (Flu AB RSV) test requested.
Associated Links:

Nasal Wash Procedure, IDDL (Microbiology/Virology) Collection Container Guidelines, Nasal Swab Collection procedure



Collection Instructions

Specimen:1 nasopharyngeal swab (all ages), nasopharyngeal wash (0-21 years only), 1 nasal swabs in universal transport media (all ages). Flocked tipped swab are recommended.
Collection Instructions:Nasal Swab: Insert swab into both nostrils. Using gentle rotation, push the swab until resistance is met at the level of the turbinates (less than one inch into the nostril). Rotate the swab several times against the nasal wall then remove it from the nostril.
Nasopharyngeal Swab: See Nasopharyngeal Swab Collection.
Nasal Wash (0-21 years old only): See Nasal Wash Procedure.
Causes for Rejection:Ewabs, calcium alginate swabs, charcoal Ames swabs, excessively bloody specimens, tissue specimens, bronchial specimens, throat swabs, sputum specimens.


Processing and Shipping

Specimen Processing:Store in refrigerator.
Shipping Instructions:Ship at refrigerated temperature. Must arrive within 24 hours.
Test Performed at or Referral Lab Infectious Diseases Diagnostic Laboratory-Virology  (Fairview Range - FRMC, UMMC-East Bank, Fairview Lakes - FLMC, Fairview Ridges - FRH, Fairview Northland - FNMC, Fairview Southdale - FSH, UMMC/UMMCH-West Bank, Fairview Clinics, M Health Clinic and Surgery Center, Grand Itasca GICH)


Interpretive

Reference Range:Negative
Use:Rapid diagnosis of Influenza A or B infection.


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