Test Overview
Test Methodology

Immunoturbidimetric

Test Usage

Differentiates iron deficiency anemia (increased transferrin) from hypochromic, microcytic anemias (normal to low transferrin). Transferrin is decreased in nephrotic syndrome, active inflammatory conditions, protein-losing conditions, and severe liver disease and increased in estrogen therapy.

Reference Range *

168-348 mg/dl

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily, 24 hrs
Analytic Time

2 hours

Soft Order Code
TSF
MiChart Code
Transferrin
Synonyms
  • TSF
  • TRANSFERRIN
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 1 week or freeze for longer storage.

Alternate Specimen
Red top or Green top (heparin).
Yellow Top Tube
Normal Volume
0.5 ml serum
Minimum Volume
0.25 ml serum
Billing
CPT Code
84466
Fee Code
21985
LOINC
3034-6
Resources