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Rapid Flu by Immunoassay

Message
Test performed at York Hospital Laboratory.


Test Code
FLU


Alias/See Also
Influenza A & B Ag, Rapid by IA


CPT Codes
87804

Includes
Flu A
Flu B


Preferred Specimen
Nasopharyngeal swab


Other Acceptable Specimens
Nasopharyngeal wash
Nasopharyngeal aspirate


Instructions
Do not use swabs that have cotton or wooden shafts.
Fresh samples should be processed within 1 hour. If necessary, specimens may be stored at 2-8oC for up to 72 hours.
Acceptable transport media include: modified Amies medium (ESwab), liquid Stuart medium, M4, normal saline, and phosphate buffered saline.


Transport Container
Red-top tube (no gel)
Swab transport media


Transport Temperature
Room temperature (without transport media)
Refrigerated (with transport media)


Specimen Stability
Without transport media
Room temperature: 1 hour
Refrigerated: not recommended
Frozen: not recommended

With transport media
Room temperature: 1 hour
Refrigerated: 72 hours
Frozen: not recommended


Methodology
Immunochromatographic Assay

Setup Schedule
Daily


Report Available
Next Day
Available STAT 1/2 Hour


Reference Range
Flu A Negative
Flu B Negative

 


Clinical Significance
This test is intended to aid the rapid differential diagnosis of influenza A and/or B viral infections. A negative test is presumptive and it is recommended these results be confirmed by cell culture. Negative results do not preclude influenza virus infection and should not be used as the sole basis for treatment or other management decisions.




The CPT Codes provided in this document 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 payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.