Soluble Transferrin Receptor
Fasting Required: No

Specimen: Blood

Results: 3-5 Business Days

Description: Soluble Transferrin Receptor (sTFR) values can be within normal limits over a broad range of body iron stores and is elevated only when there is functional (i.e. cellular) iron deficiency. It is usually not affected by chronic disease states, sTFR levels are about 6% higher in people in high altitudes (above 5200 ft/1600 m) and in African-Americans. Reference value may not apply to pregnant females and recent or frequent blood donors.

Methodology: Nephelometry

Alternate Name(s): Transferrin, Receptor Soluble, Receptor, Soluble Transferrin, sTfR, Transferrin Receptor, TfR, Serum Transferrin Receptors

Note: Result turnaround times are an estimate and are not guaranteed. Our reference lab may need additional time due to weather, holidays, confirmation/repeat testing, or equipment maintenance.