Iron status
TIBC
TIBC is tracked as part of iron status. Higher results are the ones to watch. A common adult reference interval is 240–450 ug/dL.
Typical adult range
- Reference interval
- 240–450 ug/dL
- Often-cited tighter window
- 250–370 ug/dL
Standard adult laboratory reference interval. Your own lab's printed range is the one that applies to your result.
What commonly moves it
- Iron deficiencyLow stores or poor delivery limit red-cell production and thyroid conversion.
These are commonly described physiological relationships, shared for education. They are not a diagnosis and cannot account for your medications, history, or symptoms — discuss your results with a licensed clinician.
Watching TIBC over time?
Dose Compass charts each draw, flags meaningful moves, and helps you prepare questions for your clinician.
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