Test Directory
| Test Code | ||||
| TSHAB | ||||
| Test Name | ||||
| Thyroid Stimulating Hormone Antibody | ||||
| CPT Codes | ||||
| 83519 | ||||
| Expected Turnaround Time | ||||
| 13 - 14 days | ||||
| Clinical Utility | ||||
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This test may help identify thyroid stimulating hormone (TSH) autoantibodies. When the serum TSH level is discordant with clinical manifestations or other test results (eg, markedly elevated TSH with normal free triiodothyronine and free thyroxine levels), this test may be used to determine if TSH autoantibodies are the cause of discordance. |
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| Specimen and Container Info | ||||
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Specimen Type: Serum Collection Container: Red Top, Plain Desired Specimen Volume: 1 mL |
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| Collection Instructions | ||||
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| Processing and Submission Instructions | ||||
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| Transport Instructions | ||||
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Transport to the laboratory refrigerated. |
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| Stability Requirements | ||||
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| Methodology | ||||
| Radio Immuno Assay | ||||
| Reference Intervals | ||||
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See patient report. |
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| Limitations | ||||
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Anomalous TSH levels may also be caused by a range of interfering substances, such as biotin, heterophilic antibodies, and antibodies to streptavidin and ruthenium. The results of this test should be interpreted in the context of pertinent clinical and family history and physical examination findings. |
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| Reference Lab | ||||
| Labcorp Of America Holdings | ||||
| Testing Schedule | ||||
| Routine, 2 times per week | ||||
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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