Iron Studies
Normal range 20-50 % (0.2-0.5 fraction SI). Specimen: Serum (calculated).
Also known as: iron saturation, TSAT.
Combined adult band. LabVals does not publish separate men's, women's, or pediatric ranges for Transferrin Saturation; those can be narrower than the band shown.
| Specimen | Serum (calculated) |
|---|---|
| Conventional range | 20-50 % |
| SI range | 0.2-0.5 fraction |
| Conversion factor | ×0.01 (conventional → SI) |
| Panel | Iron Studies |
Convert any Transferrin Saturation result between units on the unit converter.
The standard teaching reference range for Transferrin Saturation is 20-50 % in conventional units, or 0.2-0.5 fraction in SI units. This value is measured in serum (calculated).
Source: Adult reference values compiled from Pagana & Pagana, Mosby's Diagnostic and Laboratory Test Reference, and Fischbach & Dunning, A Manual of Laboratory and Diagnostic Tests. Reference ranges vary by laboratory, method, age, sex, and population - always use the range printed on the actual result.
Above the range
What causes a high Transferrin Saturation? Read as its own page
Below the range
What causes a low Transferrin Saturation? Read as its own page
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