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Fasting Required: No
Turnaround Time: 2-10 business days
Specimen Type: Blood
Use:
Thyroid function which is particularly useful in the diagnosis of T3 thyrotoxicosis, in which T3 is increased and T4 is within normal limits.
T3 toxicosis is occasionally found in Graves’ disease. It occurs with a single toxic nodule, multinodular thyrotoxicosis, and following treatment with T3 (Cytomel).2 It is increased in and occasionally helpful for confirmation of diagnosis of conventional hyperthyroidism, in which commonly both T3 and T4 levels are increased. T3 is needed in patients with clinical evidence for hyperthyroidism, in whom the usual thyroid profile is normal or borderline.
Reported to be normal to slightly increased with familial dysalbuminemic hyperthyroxinemia.
Recommended For:
Diagnosing hypo and hyper thyroidism, monitoring treatment of hypo & hyperthyroidism.
Special Notes:
This is a fasting test; no food or beverages other than water for 12 hours before testing.
Tests Included:
Estimated Turn Around For Results:
2-10 Business Days
For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.
| Provider | LabCorp, Quest |
|---|
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