Test Directory
| Test Code | |||||
| THTO | |||||
| Test Name | |||||
| Th/To Antibody | |||||
| CPT Codes | |||||
| 83516 | |||||
| Expected Turnaround Time | |||||
| 14 - 21 days | |||||
| Clinical Utility | |||||
| The Th/To antibodies are present in 10-19% of patients with limited SSc, in 11% of patients with diffuse cutaneous SSc, and in 3% of patients with primary Raynaud's disease. Anti-Th/To antibody has been shown to be highly specific for patients with SSc. | |||||
| Specimen and Container Info | |||||
|
Preferred Specimen Type: Serum
Preferred Collection Container: Gold Top, Serum Separator Desired Specimen Volume: 1 mL |
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| Collection Instructions | |||||
|
Collect specimen in gold top, serum separator tube via venipuncture. Centrifuge and transfer serum into plastic aliquot tube. |
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| Transport Instructions | |||||
|
Transport to the laboratory refrigerated. |
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| Stability Requirements | |||||
|
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| Causes for Rejection | |||||
| Grossly hemolyzed; bacterial contamination; lipemic specimen; icteric specimen; non-serum specimen types | |||||
| Methodology | |||||
| RIPA gel radiography | |||||
| Reference Intervals | |||||
|
Negative. |
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| Reference Lab | |||||
| Labcorp Of America Holdings | |||||
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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