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Iron CPT: 83540

Expected Turnaround Time

Within 1 day

Specimen Requirements

Specimen

Serum (preferred) or plasma (lithium heparin only). EDTA plasma causes decreased results.

Volume

1 mL

Minimum Volume

0.5 mL

Container

Red-top tube, gel-barrier tube, or lavender-top (EDTA) tube.

Collection

Separate serum or plasma from cells within 45 minutes of collection.

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements

Temperature Period
Room Temperature 4 days
Refrigerated 7 days
Frozen 3 months
Freeze/thaw/ cycles Stable x 3

Patient Information

Along with other iron tests, to determine your blood iron level; along with other tests, to help diagnose iron-deficiency anemia or iron overload.

When you have low hemoglobin and hematocrit on a complete blood count (CBC); when your healthcare practitioner suspects that you may have too little iron (deficiency) or too much iron (overload) in your 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 sample collection; in this case, only water is permitted. Follow any instructions from your healthcare practitioner and/or from the laboratory performing the test.