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Iron studies

Get to know ferritin, serum iron and the other measurements in an iron panel.

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Guide

Ferritin, serum iron, TIBC and transferrin saturation: four views of iron

An iron panel measures iron in circulation, iron in storage, and the capacity to carry it — plus a percentage computed from two of them.

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Ferritin

Reported in ng/mL.

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Iron

Reported in µg/dL · µmol/L.

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Total Iron Binding Capacity

Reported in µg/dL.

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UIBC

Reported in µg/dL.

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Transferrin

Reported in mg/dL.

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Transferrin Saturation

Reported in %.

Reading the report

Guide

What the H and L flags on a lab report actually assert

A flag compares your number to the range printed beside it on that page — nothing more. What it does not tell you, and why healthy people collect them.

Guide

Why the same blood test has different "normal" ranges at different labs

Reference intervals are built from each lab's own population and equipment, which is why two labs can print different ranges for the same sample.

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