Iron, Serum

CPT Test code: 83540

Specimen:	Serum (preferred) or plasma (lithium heparin only). EDTA plasma causes decreased results.
Volume:	1 mL
Minimum Volume:	0.5 mL
Container:	Gel-barrier tube, transport tube, or green-top (heparin) tube; do not use EDTA or oxalate anticoagulants.
Collection:	Separate serum or plasma from cells within 45 minutes of collection.
Storage Instructions:	Maintain specimen at room temperature.
Causes for Rejection:	Severe hemolysis; improper labeling; improper collection; EDTA or oxalate plasma specimens
Reference Interval:	• Adult male: 40-155 μg/dL • Adult female: 35-155 μg/dL
Use:	Aid in the evaluation of a number of conditions involving red cell production and destruction, iron metabolism, or iron transport