About the TOTAL TRIIODOTHYRONINE (T3)
Adjunct to TSH/FT4 in hyperthyroidism evaluation.
Sample Required
Blood (venous sample).
Fasting Requirement
No fasting required.
Why is this Test Done?
- Adjunct to TSH/FT4 in hyperthyroidism evaluation.
General Reference Range
- ~80–200 ng/dL
What Abnormal Results Mean
Elevated in hyperthyroidism; affected by binding proteins.





