Iron deficiency anemia
Male: 18 - 320 ng/mL; Female: 6 - 155 ng/mL; Post-menopause: 10 - 265 ng/mL.
Specimen may be stored at room temperature up to 8 hours.
Collect specimen in a red top or SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate up to 48 hours or freeze for longer storage. Grossly hemolyzed samples are not acceptable for analysis.