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8550: Influenza Virus, A & B Nucleoprotein Antigen Print View
Influenza A Nucleoprotein Antigen ICMA  Not detected   
Influenza B Nucleoprotein Antigen ICMA  Not detected   

PRIMARY
1 Nasopharyngeal Swab 1 (1) mL   Refrigerated - 24 Hour(s)  
ALTERNATE
  Nasopharyngeal Wash   Refrigerated - 24 Hour(s)  
  M6 Transport Media/Swab   Frozen - 30 Day(s)/Refrigerated - 4 Day(s)  
  Nasopharyngeal Aspirate   Refrigerated - 24 Hour(s)  
  Culturette/Swab   Refrigerated - 24 Hour(s)  

This assay serves as a rapid and sensitive front line screening assay during seasonal outbreaks of influenza A & B. In the event of an avian influenza (H5N1) pandemic, this assay would be a preferred rapid assay for screening of influenza A infection (including H5N1), since cell culture has a long incubation period and also presents risk to testing personnel. Positive influenza A results could then be differentiated by molecular diagnostic testing.

Collect nasopharyngeal swab specimen using a sterile cotton, rayon,
foam, or polyester flexible-shaft NP swab. Calcium alginate swabs
are NOT recommended.
Collect nasopharyngeal wash in standard sterile container.
Collect nasopharyngeal aspirate in small sterile container or tube.
Ship specimen at 2-8 degrees celsius to arrive at laboratory within
24 hours of collection.
Setup Schedule
Sunday-Saturday

Reported (Analytical Time)
Same day

CPT Code
87400x2

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Notes
The assay is 80% sensitive and 93% specific for influenza A when compared to cell culture. For influenza B, the comparison is 65% sensitive and 97% specific.






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