Iron
Iron
Iron circulating in the blood at the moment of the draw, which is not the same as iron in storage.
Unit ug/dLTypical adult range 60–170 ug/dL
What it is
Iron circulating in the blood at the moment of the draw, which is not the same as iron in storage.
Why it matters
On its own it says very little; it is mainly the input to transferrin saturation, which is where the meaning sits.
Reading the number
Serum iron swings by the hour and with every meal, so never read one value alone. Ferritin and saturation are the stable pair.
What moves it
time of dayrecent mealiron supplements in the past dayrecent illness
When to raise it
Worth reading with ferritin and saturation rather than on its own.
Also known as
On a report in another language.
A lab report names this analyte in its own language. Vitals Vault recognises each of these and files them all under Iron.
FerroRaudEisenHierroFerFerro SéricoSiderémia
Catalog entry last updated 2026-08-27. Browse all 165 metrics.