Soluble Transferrin Receptor Level
| Label Mnemonic: | STR |
| Epic code: | LAB8683 |
| Order form: | Epic Req |
| Downtime form: | Doctor/Provider Orders - Pathology Core and Specialty Care Nursery |
Commercial Mailout Laboratory
6240-8 RCP
356-8593
6240-8 RCP
356-8593
Specimen(s):
Serum
Collection Medium:
 |
| Red top tube 5 mL (Clot Activator) |
Minimum:
Preferred Minimum: 1 mL plasma
Absolute Minimum: 0.3 mL plasma
Turn Around
Time:
1 – 2 days upon receipt at reference laboratory (upon receipt in laboratory)
Reference Range:
1.8-4.6 mg/L
It is reported that African Americans may have slightly higher values.
Interpretive Data:
Soluble transferrin receptor (sTfR) concentrations are inversely related to iron status; sTfR elevates in response to iron deficiency and decreases in response to iron repletion.
Methodology:
Immunoturbidimetric Assay
CPT Code:
84238