Triiodothyronine (T3) Free, Serum
Fasting Required: No

Specimen: Blood

Results: 2-3 Business Days

This test is used to evaluate thyroid function. It is primarily used to diagnose hyperthyroidism. It is also used to assess abnormal binding protein disorders and to monitor thyroid replacement and suppressive therapy.


Clinical Significance:
This test is used to diagnose hyperthyroidism and to clarify thyroid status in the presence of a possible protein binding abnormality.

Alternative Name(s):
Free T3

Note: Result turn around times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.