Total iron circulating in plasma, largely bound to transferrin. Diurnal variation (up to 30%); morning samples preferred. Low in iron deficiency and anaemia of chronic disease; high in iron overload.
| Sex | Age | Range | Notes |
|---|---|---|---|
| Female | ≥ 18 yrs | 9 – 26 | Adult female |
| Male | ≥ 18 yrs | 11 – 28 | Adult male |
⚠ Clinical Note
Reference ranges are indicative. Always interpret results in the context of the individual patient and local laboratory reference intervals, which may vary.