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Test Code IRN, IRNT Iron and Total Iron-Binding Capacity, and Percent Saturation, Serum

Methodology

Colorimetric, Ferene Chromophore

Performing Laboratory

Aspen Valley Hospital

Physician Office Specimen Requirements

Container/Tube:  Gold-top serum gel tube(s) or orange-top tube(s) - Plain, red-top tube is also acceptable.

Specimen:  2 mL (minimum volume:  1 mL) of serum
Transport Temperature:  Ambient

Collection Instructions:  Allow specimen to clot for approximately 10 minutes and spin down. If drawing gold-top serum gel tube, send entire tube to laboratory. If drawing orange-top tube or plain, red-top tube, remove serum and place in separate plastic vial. If there is a delay in transport of >8 hours, send specimen refrigerated.

Reference Values

IRON

Males

65-175 µ g/dL

Females

50-170 µg/dL

TOTAL BINDING CAPACITY

250-450 µg/dL

PERCENT SATURATION

20-55%

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

83540 - iron

83550 - iron binding capacity