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Thyroid Function Panel in California

The thyroid function panel with TSH measures several markers of thyroid activity, including TSH, T3 uptake, T4, and a calculated T7 index. It is used to help determine whether the thyroid is functioning properly.

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Typical turnaround
1-3 business days
Starting price
From $118
Results
Confidential, online

Quick answer

The thyroid function panel with TSH combines several measurements to assess how well the thyroid gland is working. It includes thyroid-stimulating hormone, T3 uptake, T4, and a calculated T7 index that adjusts the T4 result. The panel is ordered when symptoms suggest an overactive or underactive thyroid and is interpreted by a qualified healthcare provider.

What this test measures

The thyroid gland controls metabolism through hormones such as thyroxine and triiodothyronine. The pituitary gland releases thyroid-stimulating hormone, or TSH, to regulate the thyroid. Measuring TSH alongside thyroid hormone levels helps show whether the gland is being driven too hard, not enough, or responding normally.

The panel uses a blood sample and reports several values. T3 uptake estimates how much binding capacity is available for thyroid hormones, T4 measures total thyroxine, and the T7 index is calculated from T3 uptake and T4 to give an adjusted estimate of free thyroxine. Together these markers offer a traditional view of thyroid function.

Clinicians order this panel to investigate fatigue, weight change, temperature sensitivity, or a visible goiter. It can also be used to follow a known thyroid condition. Results are reviewed as a set, and a qualified healthcare provider determines whether any further testing or care is appropriate.

Thyroid Function Panel in California cities

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Frequently Asked Questions

Where can I get a thyroid function panel in California?

California has certified laboratories and independent diagnostic centers that offer this panel. Direct-access ordering lets you select a location that fits your schedule.

How much does a thyroid function panel cost in California?

Pricing varies by provider and location. Check the price shown at checkout, and contact the testing partner for a written estimate if needed.

Is at-home collection available in California?

For select panels, at-home kits can be shipped to California, collected at home, and mailed back for analysis.

How long do results take in California?

Most results are reported within 1-3 business days after collection.

Ready to get tested?

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Medical disclaimer. The information on LabOrdering.com is educational only and is not medical advice, diagnosis, or treatment. Reference ranges and clinical guidance vary between laboratories. Always consult a qualified healthcare provider about your own results and care.