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Thyroid Panel with Thyroid-Stimulating Hormone (TSH) Blood Test
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| Feature |
Labcorp
|
Quest Diagnostics
|
|---|---|---|
| Price | $26.99 | $14.99 |
| Results in | ~2 business days | ~5 business days |
| Sample type | Blood Serum | Blood Serum |
| Require fasting | No | No |
About the test
The Thyroid Panel assesses 4 key markers related to thyroid function. It helps evaluate overall thyroid health and is commonly used to diagnose conditions like hypothyroidism, hyperthyroidism, and monitor thyroid therapy.
Included biomarkers & Reference ranges
| Biomarker | Reference range |
|---|---|
| T3 Uptake An older test used, together with total T4, to estimate free thyroid hormone levels by assessing binding protein capacity. | 22–35 % |
| T4, Total Measures total thyroxine (T4), including both bound and unbound hormone, used in thyroid function evaluation. | 4.5–12 µg/dL |
| Thyroid-Stimulating Hormone (TSH) A pituitary hormone that signals your thyroid to produce hormone. The primary screening test for both underactive and overactive thyroid conditions. | 0.4–4.5 mIU/L |
| Free T4 Index (T7) Free Thyroxine Index — a calculated estimate of free T4 thyroid hormone, adjusting total T4 for binding protein levels. | — |
Reference ranges vary by lab, age, and sex (M/F). Your report shows your exact range. Click any biomarker to see its optimal range and what your results mean.
Preparation
Labcorp lists no special preparation for this test.
- Specimen collection after fluorescein dye angiography should be delayed for at least 3 days. For patients on hemodialysis, specimen collection should be delayed for 2 weeks.
How it works
- 1. Order online No referral or insurance
- 2. Get a requisition By email, instantly
- 3. Visit a draw center Bring a matching photo ID
- 4. Get results Securely by email
- These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
Consultations
Not sure how to read your results? We can help.
Schedule a consultation with a Hormunity specialist. We’ll walk through every marker, interpret what it means for you, and map out the next steps for your care.
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