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Test Code TIBCLL Iron and Total Iron Binding Capacity (I+TIBC) LAB829

Performing Laboratory

UnityPoint The Finley Hospital

Test Method

Iron: Colorimetric; Roche cobas Pro
TIBC:  Calculated using Transferrin result
% Saturation: Calculated

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

Specimen Requirement

  1. Lithium heparin plasma (green) is the specimen of choice. 0.5mL
  2. Serum (red/gold) is also an acceptable sample type.
  3. Separate serum or plasma from the clot or cells within 1 hour.
  4. Specimens are stable for 7 days at 20-25°C, 3 weeks at 4-8°C, and 1 year at -20°C.

Useful For

Screening for chronic iron overload diseases, particularly
hereditary hemochromatosis

Serum iron, total iron-binding capacity, and percent saturation
are widely used for the diagnosis of iron deficiency. However,
serum ferritin is a much more sensitive and reliable test for
demonstration of iron deficiency.

Diagnosis of malnutrition, acute inflammation, infection,
assessment of renal function and red blood cell disorders, such as
iron deficiency anemia.

Reference Values

  1. Male: 61-157 μg/dL
  2. Female: 37-145 μg/dL

    TIBC: 255 - 479 μg/dL
    %Saturation: 20 - 50%

CPT Code Information

83540: Chemistry: Iron

84466: Chemistry: Transferrin

LOINC Code Information

13452-8 Iron/Transferrin SerPl

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