Laboratory Fee Schedule
Procedure #: MZZ0238A
CPT: 87502
| Synonym(s): | Influenza Surveillance, Flu |
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| Requisition Form | G-2V |
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| Test Description | - Testing of suspected influenza specimens to detect the presence of Influenza A and Influenza B in symptomatic patients.
- All positive Influenza A specimens are further tested for seasonal A/H3 and 2009 A/H1N1.
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| Pre-Approval Needed | Please contact the Emerging and Acute Infectious Disease Unit at 512-776-7676 if novel influenza such as A/H7N9, H5N1, and H3N2v is suspected or if there has been prior travel to countries where novel influenza is considered endemic. |
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| Supplemental Information Required | May be required if novel influenza is suspected. |
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| Supplemental Form(s) | N/A |
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| Performed on Specimens from (sources) | Human |
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| Sample/Specimen Type for Testing | - Nasopharyngeal swabs (preferred)
- Nasal swabs
- Throat swabs
- Nasal aspirates
- Nasal washes
- Dual nasopharyngeal/throat swabs
- Bronchoalveolar lavage
- Bronchial wash
- Tracheal aspirate
- Sputum
- Lung tissue
Please contact the Laboratory at 512-776-7594 or 512-776-2452 prior to submitting lung tissue. |
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| Minimum Volume/Size Required | 1–2 mL |
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| Storage/Preservation Prior to Shipping | Refrigerate at 2°C–8°C or freeze at -70°C or below. |
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| Transport Medium | - Universal transport media (UTM)
- Viral transport media (VTM)
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| Specimen Labeling | - Two patient-specific identifiers required (e.g., patient full name, date of birth, medical record number).
- Three patient identifiers are preferred.
- Patient identifiers on specimen label must exactly match identifiers on submission form (e.g., abbreviated name on label and full name on form is not acceptable.)
- Additional DSHS Laboratory specimen labeling guidelines available online here.
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| Shipping and Specimen Handling Requirements | - Ship according to Dangerous Goods Regulations, IATA, and/or CFR 49
- Handle as an infectious agent using universal precautions.
- Triple-contained in accordance with federal shipping regulations for infectious agents.
- If specimens will arrive at the Lab within 72 hours of collection, refrigerate at 2°C–8°C and ship overnight on cold packs.
- Ship frozen at -70 ̊C and overnight on dry ice if specimens will arrive at the Laboratory more than 72 hours after time of collection.
- Submitters are responsible for packaging and shipping specimens according to regulatory requirements.
- Additional DSHS Laboratory specimen shipping guidelines online here.
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| Method | Real-time RT-PCR |
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| Turn-around Time | 2 business days |
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| Interferences/Limitations | - False negative may result if specimen is improperly collected, transported, or handled.
- Detection of viral RNA does not imply that the corresponding virus is infectious or is the causative agent for clinical symptoms.
- A negative result does not preclude infection.
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| Common Causes for Rejection | - Discrepancies between G-2V submission form and specimen label.
- Failure to put two forms of identification on tube.
- Specimen received cold greater than 72 hours after collection.
- Specimen received ambient.
- Submission of incorrect specimen type.
- Submission of expired transport media.
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| Additional Information | Please mark Influenza Surveillance {Influenza PCR} request box on the G-2V form. Note: By checking the Influenza Surveillance or COVID-19 PCR test request box, submitters authorize DSHS to test for Flu and/or COVID as resources allow. |
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