Use Transferrin Saturation % when you need to compute transferrin saturation as serum iron divided by total iron binding capacity times one hundred. Enter Serum iron and Transferrin capacity using the definitions and units below so the result can be reproduced.

Serum iron

A finite measured or assumed value, expressed in µg/dL.

Transferrin capacity

A finite measured or assumed value, expressed in µg/dL.

The published tool contract uses this rule: Compute transferrin saturation as serum iron divided by total iron binding capacity times one hundred.

Transferrin saturation

The calculated transferrin saturation in %.

A ratio or percentage can conceal the scale of its numerator and denominator and becomes sensitive to measurement error when the denominator is small. It is informational and cannot diagnose a condition, select treatment, or replace professional interpretation of the original measurements.

Retain the original Serum iron and Transferrin capacity values and their units alongside the result. O2 Saturation Category is useful when you instead need to classify peripheral oxygen saturation as hypoxemic (below 90), borderline (90 to below 95) or normal (95 to 100). Iron Deficiency Indicator provides another view by helping you flag iron deficiency when ferritin is below thirty nanograms per millilitre and transferrin saturation is below twenty percent.

• O2 Saturation Category

  Classify peripheral oxygen saturation as hypoxemic (below 90), borderline (90 to below 95) or normal (95 to 100).

• Iron Deficiency Indicator

  Flag iron deficiency when ferritin is below thirty nanograms per millilitre and transferrin saturation is below twenty percent.

• Ferritin Per Iron Ratio

  Compute the ratio of ferritin in nanograms per millilitre to serum iron in micrograms per decilitre.