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Vanderbilt Pathology Laboratory Services

Test Directory



INFLUENZA B BY PCR (IBD)

Department: Molecular Infectious Disease
Test Synonym(s): IBD, FLU B RNA PCR
CPT Codes: 87798
Methodology: PCR - Polymerase Chain Reaction
Reference Range: Not detected
Tube Type: Sterile container - swab
Specimen: Nasal washing, nasal secretions, nasopharyngeal swabs
Alternate Specimen: Need Medical Director approval
Pediatric Requirements: Nasal washing, nasal secretions, nasopharyngeal swabs
Volume: 0.5 mL
Minimum Volume: 0.2 mL
Temperature: Room Temperature - same day, refrigerated - overnight, frozen - longer than overnight
Stability: Room temperature: same day, refrigerated: overnight, frozen: longer than overnight
Reasons for Rejection: Alternative specimen sent without Medical Director approval
Days Performed: Monday, Wednesday and Friday
Times Performed: Once per day on Monday, Wednesday and Friday (batched)
TAT: 24 hours (Monday - Friday)
Significance: Influenza A and B viruses account for more morbidity and mortality than any other respiratory viruses. The elderly as well as persons of any age who have underlying cardiac or pulmonary disease, diabetes or immunosuppressive disease are at increased risk. Cell cultures available for detection of influenza A are unsatisfactory due to the length of time required to grow and identify the virus. Detection of influenza A RNA by PCR is a rapid, sensitive and specific technique for laboratory diagnosis, allowing informed clinical decision making and timely administration of anti-viral agents.
Special Instructions: Other sources or samples may be acceptable for this test; please check with the lab, 615-936-6435.

Click here to print the Molecular Diagnostics requisition.

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