Abnormal T3 free levels can have various causes, just like most other symptoms. Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.
Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms. In order to diagnose abnormal T3 free levels, we could:
T3 (Free). Unit: pg/mL [pmol/L]
Possible responses:→ Don't know
→ Under 1.4 [0.021] (very low)
→ 1.4 to 2.0 [0.021-0.031] (low)
→ 2.1 to 4.4 [0.032-0.068] (normal)
→ Over 4.4 [0.068] (elevated)