| Synonym(s): |
Arbovirus, Flavivirus |
| Requisition Form |
G-2V |
| Test Description |
Qualitative Immunochromatographic Assay (ICA) for the presumptive detection of IgM antibodies to Zika virus using Chembio DPP Assay system.. |
| Pre-Approval Needed |
Yes. Contact your local or state epidemiologist if Zika virus is suspected. Contact information can be found at the following link:
http://www.dshs.texas.gov/idcu/investigation/conditions/contacts/ |
| Supplemental Information Required |
N/A |
| Supplemental Form(s) |
N/A |
| Performed on Specimens from (sources) |
Human |
| Sample/Specimen Type for Testing |
Serum |
| Minimum Volume/Size Required |
1.0 mL |
| Storage/Preservation Prior to Shipping |
Serum separated from the clot may be stored at 2°C to 8°C up to 48 hours, but then must be frozen at -20°C or colder until shipped. |
| Transport Medium |
N/A |
| Specimen Labeling |
- At least two patient-specific identifiers are required (e.g., patient’s full name, date of birth and Medical Record number).
- Three patient identifiers are preferred.
- Patient identifiers on specimen tube must exactly match identifiers on the G-2V submission form.
- Additional DSHS Laboratory specimen labeling guidelines available online here.
|
| Shipping and Specimen Handling Requirements |
- Ship according to Dangerous Goods Regulations, IATA, and/or CFR 49.
- Handle as infectious agent using universal precautions.
- Triple contain in accordance with federal shipping regulations for infectious agents.
Additional forms & resources
- If specimen will arrive at the Lab within 48 hours of collection, refrigerate at 2°C –8°C and ship overnight on cold packs.
- If specimen will arrive at the lab more than 48 hours after time of collection, freeze at -20°C or colder, and ship overnight on dry ice.
- Additional DSHS Laboratory specimen shipping guidelines online here.
|
| Method |
Immunochromatographic Assay ICA, lateral flow test, rapid test |
| Turn-around Time |
7 working days |
| Interferences/Limitations |
- The most common cause of false positive results is cross-reactivity with IgM specific for other flaviviruses.
- Negative results do not preclude infection with Zika and should not be the sole basis of a patient treatment/management or public health decision.
|
| Common Causes for Rejection |
- Insufficient quantity
- Unacceptable specimen type or source
- Improper shipping conditions
- Expired media or collection container
- Discrepancies between specimen label and submission form
- Incomplete, illegible, or missing submission form
|
| Additional Information |
- Reactive samples will be forwarded to CDC for confirmatory testing by Plaque Reduction Neutralization Test (PRNT).
- Minimum volume for CDC confirmation testing 0.5 mL.
- Please visit www.texaszika.org/labs/htm for more information.
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