Laboratory Fee Schedule
Procedure: MAM0087A
CPT: 86790
| Synonym(s): | CHIKV, Togavirus, Alphavirus, Arbovirus |
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| Requisition Form | G-2V |
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| Test Description | ELISA test for the qualitative detection of IgM antibodies against chikungunya virus in serum. |
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| Pre-Approval Needed | Contact your local or state epidemiologist if chikungunya, dengue or Zika virus are suspected. Contact information can be found at the following link https://www.dshs.texas.gov/idps-investigation-forms/disease-reporting-contacts. |
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| Supplemental Information Required | N/A |
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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 | Serum |
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| Minimum Volume/Size Required | 1.0 mL |
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| Storage/Preservation Prior to Shipping | - Store serum cold at 2°C to 8°C for up to 48 hours after collection.
- For storage longer than 48 hours, store frozen at - 20°C or below.
- Never freeze serum in separator tubes.
- Transfer serum to transport tube before freezing
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| Transport Medium | N/A |
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| Specimen Labeling | - At least two patient-specific identifiers required on specimen (e.g., patient full name, date of birth, medical record number).
- Three unique 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.
- Category B Biological Substance, UN3373 shipping requirements apply.
- Submitters are responsible for packaging and shipping specimens according to regulatory requirements.
- Additional DSHS Laboratory specimen shipping guidelines online here.
- Refrigerate at 2°C –8°C and ship overnight on frozen cold packs if specimen will arrive at the Laboratory within 48 hours of collection.
- Freeze at -20°C or colder, and ship overnight on dry ice if specimens will arrive at the Laboratory more than 48 hours after time of collection,
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| Method | Enzyme-Linked Immunosorbent Assay (ELISA) |
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| Turn-around Time | 7 working days |
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| Interferences/Limitations | The Chikungunya virus assay exhibits cross reactivity with other alphaviruses. |
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| Common Causes for Rejection | - Insufficient specimen volume.
- Unacceptable specimen type or source.
- Improper storage or shipping conditions.
- Expired media or collection container used.
- Discrepancies between specimen label and G-2A submission form.
- Failure to meet specimen submission or shipping requirements.
- Missing/incomplete/illegible submission form.
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| Additional Information | - Reactive samples will be forwarded to CDC for confirmatory testing by Plaque Reduction Neutralization Test (PRNT).
- Minimum volume for CDC confirmation testing is 0.5 mL.
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