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Test Code FE Iron, LAB94


Ferene Without Deproteinization

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements


Preferred: Green-top (heparin) tube-Hemolyzed specimen is not acceptable.

Acceptable: Gold-top serum gel tube or plain red-top tube

SpecimenVolume: 0.1 mL of plasma or serum

Stability: Separated specimens should be analyzed immediately or kept at 2 – 8 °C

               and analyzed within 7 days. For longer storage, samples may be frozen at

               -20 °C for up to 6 months.

Note: 1. Iron values may be falsely elevated in the presence of therapeutic iron-containing compounds such as iron dextran.


Reference Values

30-160 mcg/dL

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding


Useful For

Iron measurements are used in the diagnosis and treatment of disease such as iron deficiency anemia, hemochromatosis (a disease associated with widespread deposit in the tissues of two iron containing pigments, hemosiderin and hemofuscin, and characterized by pigmentation of the skin), and chronic renal disease. Iron determinations are performed for the diagnosis and monitoring of microcytic anemia

(i.e. due to iron metabolism disorders and hemoglobinopathy), macrocytic anemia (i.e. due to vitamin B12 deficiency, folic acid deficiency and drug-induced metabolic disorders of unknown origin), as well as normocytic anemias such as renal anemia (erythropoietin deficiency), hemolytic anemia, hemoglobinopathy, bone marrow disease, and toxic bone marrow damage.