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Test Code IRON Iron, Serum

Additional Codes

Compendium Code (Iatric): L303.0379

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Acid Reduction/Ferene Complex Formation

Specimen Requirements

Draw blood in a serum gel tube. Spin down and send 1 mL of serum refrigerated.

Separated specimens may be stored for up to 4 days at 25°C or for up to 7 days at 2 - 8°C

 

Unspun specimens must be transported at ambient temperature and arrive to the laboratory within one hour of draw.

Reference Values

Males:  53-167 mcg/dL

Females:  49-151 mcg/dL

Serum iron concentrations exhibit diurnal variation, with the highest values being obtained in the morning. Because of this diurnal variation, serum iron values may vary by up to 30% during the course of a day.

Interfering Substances:

Hemolysis and lipemia (triglycerides >1,000 mg/dL) will falsely elevate the iron concentration.

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

CPT: 83540

LOINC: 2498-4