Soluble Transferrin Receptor : 1001562

Test Code
TRSR or 1001562

CPT Codes
84238

Instructions
Serum separator tube or plasma separator tube. Also acceptable: green (no gel) (sodium or lithium heparin) or lavender (EDTA).

Transport Container
Centrifuge serum or plasma separator tube and transport. If heparinized blood or lavender top, centrifuge and aliquot plasma into a standard transport tube. 1 mL (Min: 0.5 mL)

Transport Temperature
Refrigerated.

Specimen Stability
After separation from cells: Ambient: Not established; Refrigerated: 7 days; Frozen: 60 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Icteric.

Methodology
Nephelometry

Setup Schedule
Tuesday - Saturday

Report Available
1-3 days (From receipt at performing laboratory)

Reference Range
0.76-1.76 mg/L

Clinical Significance
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.

Performing Laboratory
Quest Diagnostics



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.