SOLUBLE TRANSFERRIN RECEPTOR (sTfR)

Test Documentation
Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Plasma: EDTA, heparin
Serum: Red-top

Methodology
Nephelometry

Stability
Room Temperature: 72 hours; Refrigerated: 7 days; Frozen: 1 month

Reference Range
Male-18 years & older:   2.2-5.0 mg/L  
Female-18 years & older:   1.9-4.4 mg/L  

Performed
Sunday-Saturday

Turnaround Time4-6 days
Test CodeSTRS
CPT-4 Code (s)
84238
LOINC Codes
33210-6

Warde
Medical
Laboratory