Seasonal Influenza Virus Detection
Brief Description
Influenza Polymerase Chain Reaction
Virus Culture
Laboratory Unit
Molecular (rRT-PCR) & Virology (virus culture)
Methodology
Real-Time RT-PCR
Virus Culture
Specimen Collection
Collection of Seasonal Influenza Specimens
Collection and Submission of Influenza & SARS-CoV-2 Specimens for Virologic Surveillance
Storage/Transport
Collection of Seasonal Influenza Specimens
Collection and Submission of Influenza & SARS-CoV-2 Specimens for Virologic Surveillance
Acceptable Specimen Type(s)
Upper respiratory tract clinical specimens
- Nasopharyngeal Swab
- Nasal Swab
- Throat Swab
- Nasal Aspirate
- Nasal Wash
- Nasopharyngeal Swab / Throat Swab combination
Lower respiratory tract clinical specimens
- Bronchial Alveolar Lavage
- Bronchial Wash
- Tracheal Aspirate
- Sputum
- Lung tissue
Test Request Form(s)
Possible Results
Real-Time PCR
Influenza A Detected
Influenza B Detected
Invalid (Specimen is inadequate for testing, a new specimen may need to be collected)
Influenza Not Detected
Influenza AH3 Detected
Influenza A 2009 H1N1pdm Detected
Influenza A(H3N2)v Presumptively Detected, specimen being forwarded to CDC for confirmation
Influenza A Virus Detected, Subtyping Not Performed
Influenza B, Victoria Lineage Detected
Influenza B, Yamagata Lineage Detected
Influenza B Detected, Lineage Genotyping Not Performed
Inconclusive
Unsatisfactory
Virus Culture
Influenza A Isolated
Influenza A (H1) Seasonal Isolated
Influenza A (H3) Isolated
Influenza 2009 A (H1N1) pdm Isolated
Influenza B Isolated
Influenza B/Victoria Lineage Isolated
Influenza B/Yamagata Lineage Isolated
No Virus Isolated
Unsatisfactory
Test Cancelled
Inconclusive for Influenza
* Effective October 1, 2021, all specimens submitted for Influenza Real-Time PCR analysis will also receive testing for SARS-CoV-2 by Real-Time PCR analysis.
Unacceptable Conditions
Improperly identified
Not meeting laboratory testing criteria
Interfering Substances
Use only viral transport medium and synthetic Dacron/flocked swab or equivalent. Do not use wooden shaft or cotton swab.
Result Reported
rRT-PCR - Typically, testing is performed and results are reported the same day the specimen is received.
Virus Culture - Up to 14 days
Fees
N/A
CPT Codes
N/A
LOINC/SNOMED Codes
N/A