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Test Name: | Thyroid Cascade Profile |
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Test Code: | 330015 |
Other Names: | N/A |
Test Includes: | Thyroid-stimulating hormone (TSH) with automatic reflex (as diagnostically warranted) to free thyroxine, free triiodothyronine, and/or thyroid peroxidase (TPO) antibodies. If reflex testing is performed, additional charges/CPT code(s) may apply. |
Specimen Requirements: | Serum, 2 mL |
Container: | Red-top tube or gel-barrier tube |
Collection Instructions: | If a red-top tube is used, transfer separated serum to a plastic transport tube. |
Stability: | Refrigerate |
Rejection Criteria / Special Instructions: | Note: Special reflexing. If TSH is less than .450 it will reflex to Thyroxine (T4) Free, Direct and depending on the Thyroxine, (T4) Free, Direct result may reflex to a Tri-iodothyronine (T3), Free, both at an additional char |
Methodology: | Electrochemiluminescence Immunoassay (ECLIA) |