Thyroxine (T4), Total and Tri-iodothyronine (T3) Total - (LABCORP)
Significant deviations from the normal range may require further evaluation by your physician.
Thyroxine (T4), Total Tri-iodothyronine (T3), Total
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H or coenzyme R). It is recommended to stop biotin consumption at least 72 hours prior to the collection of specimen. Estimated turnaround for results is 3 business days. If confirmation testing is required, the estimated time may be extended.
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