Thyrotropin Receptor Antibody, Serum
| Abbrev Code: | THYRA | ||
| Order Code: | LAB6589 | Order Name: | Thyrotropin Receptor Antibody |
| Synonyms: | TSH Receptor Antibodies | ||
| Methodology: | Electrochemiluminescence immunoassay | ||
| CPT Codes: | 83520 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Fri; results are reported within 1-3 days. | ||
| Compliance: | This test has been cleared, approved or is exempt by the U.S. Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements. |
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Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 1.7 mL |
| Container: | Red or gold (gel) Alternate Containers: Red (no gel) |
| Causes for Rejection: | Gross hemolysis. |
| Contraindications: | In patients receiving therapy with high biotin doses (i.e., >5 mg/day), no specimen should be drawn until at least 8 hours after the last biotin administration. Do not use specimens from patients receiving heparin treatment. |
Processing and Shipping
| Specimen Processing: | Centrifuge and aliquot 1 mL, 0.75 mL minimum. Store in refrigerator. |
| Shipping Instructions: | Ship at refrigerated temperature. |
| Stability: | 7 days refrigerated; 90 days frozen. |
| Test Performed at or Referral Lab | Lab Sendouts (Mayo Medical Laboratories) |
| Referral Lab number: | THYRO |
Interpretive
| Reference Range: | Less than or equal to 1.75 IU/L |
| Use: | Detection of thyrotropin receptor (TSHR) antibodies. |
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