Iron and Total Iron-binding Capacity (TIBC) CPT: 83550
Fe and TIBC
TIBC and Iron
Total Iron-binding Capacity (TIBC)
Unsaturated Iron-binding Capacity (UIBC)
Expected Turnaround Time
Within 1 day
Turnaround time is defined as the usual number of days from the date of pickup of a specimen for testing to when the result is released to the ordering provider. In some cases, additional time should be allowed for additional confirmatory or additional reflex tests. Testing schedules may vary.
Serum (preferred) or plasma (lithium heparin only). EDTA plasma causes decreased results.
Gel-barrier tube, transport tube, or green-top (heparin) tube; do notuse EDTA or oxalate anticoagulants.
Separate serum or plasma from cells within 45 minutes of collection.
Maintain specimen at room temperature.
Along with other iron tests, to assess your body’s ability to transport iron in the blood; to help diagnose iron-deficiency or iron overload.
When you have low hemoglobin and hematocrit on a complete blood count (CBC); when your healthcare practitioner suspects you may have too much iron (overload) or too little iron (deficiency) in the body.
A blood sample drawn from a vein in your arm.
You may be instructed to have your blood drawn in the morning and/or fast for 12 hours before the test; in this case, only water is allowed. Follow any instructions from your healthcare practitioner and/or from the laboratory performing the test.