Flu Virus

Test Description

Detection of Influenza virus and sub-typing of Influenza A is performed using a virus-specific real-time Reverse transcriptase - PCR assay specific for the matrix protein gene of the virus.

Specimens Suitable For Testing

Nasal-pharyngeal swabs placed in viral transport media are the preferred sample type; however, nasopharyngeal wash and bronchial-alveolar lavage (BAL) are acceptable specimens for analysis. Sputum is not an acceptable sample type. Specimens can be refrigerated (4°C) for up to 72 hours prior to testing. Samples can be frozen (-80°C) for longer periods of storage.

How to Order This Test

OHSU patients: Tests should be ordered through EPIC. If only Influenza A and B are the expected targets then the INFLUENZA PCR panel should be requested. If Influenza A, B and respiratory syncytial virus (RSV) are to be assayed, then the INFLUENZA A/B/RSV PCR panel should be requested.

Outside OHSU:

Please fill out the reference laboratory requisition form:
http://www.ohsu.edu/pathology/wardman/forms/referencelaboratoriesreq.pdf
Please send specimens to address listed below.
- To Send Specimens by express mail:
  
  Knight Diagnostic Laboratories
  2525 SW 3rd Ave.
  Ste. 350
  Portland, OR 97201

For additional information, contact Knight Diagnostic Laboratory Services Center at 503-494-5400.

CPT Codes

Charges per requested test are shown broken down by CPT code (current as of 2/2011)

Billable Target	CPT
Influenza A & B purification and detection	87502
Influenza A subtypes (H1, H3 and 2009 H1N1)	87503 (x3)
Respiratory syncytial virus (RSV)	87798

Results Reporting

Samples ordered in the OHSU system will be reported in Epic. For samples outside of OHSU, results will be faxed to the office of the physician ordering the test. Test results are usually generated 1 to 2 days after a sample is received by Lab Central. We will inform the ordering physician of any problems relating to specimen quality or resulting by e-mail (preferably) or by phone if a number is provided.