TEST DIRECTORY | MIDx Labs

TRANSFERRIN (TRSFN)

Iron transport protein included with iron studies to assess iron status.

LIS TEST CODE: TRF

CPT CODE: 84466

ALIASES: TRSFN, TRF, Iron Binding Protein

METHODOLOGY: Immunoturbidimetric

SPECIMEN:

- Type: Serum

- Container: Gold Top (SST) Vacutainer

- Minimum Volume Required: 1 mL

- Storage/Handling: Allow 30 minutes for blood to clot, then centrifuge specimen at 3500 RPM for 10 minutes. Maintain specimen at either room temperature, in the refrigerator, or in the freezer until testing can be performed.

NOTE: If freezing is required to preserve stability, transfer serum into a separate plastic screw-cap transport container.

- Stability: Room Temperature (20-25 °C): 3 days

Refrigerated (2-8 °C): 3 days

Frozen (-20 °C or colder): 6 months; avoid multiple freeze/thaw cycles.

- Turnaround Time: 24 hours from receipt.

Special Instructions: Frozen specimens must be completely thawed before mixing. Mix thawed specimens thoroughly until visibily homogenous.

REJECTION REASONS: QNS, Gross Hemolysis, Gross Lipemia, Contamination, Stability Violation, Expired Container, Incorrect Container

REFERENCE RANGES:

Males & Females (mg/dL)

>= 1 year of age: 200 - 360