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CPT Code(s)



Immunoassay (IA)


Liver dysfunction and other factors can cause a reduction in the clearance of serum ferritin resulting in an increase in serum ferritin levels. Ferritin is an acute phase reactant that may be elevated in a wide-range of inflammatory conditions and infections. Clinical studies suggest the sensitivity may be 35-48% and specificity of 75-78% to detect iron deficiency.

Reference Range(s)

AgeMale Female
<4 DaysNot establishedNot established
4-14 Days100-717 ng/mL100-717 ng/mL
15 Days-5 Months14-647 ng/mL14-647 ng/mL
6-11 Months8-182 ng/mL8-182 ng/mL
1-4 Years5-100 ng/mL5-100 ng/mL
5-13 Years14-79 ng/mL14-79 ng/mL
14-15 Years13-83 ng/mL6-67 ng/mL
16-19 Years11-172 ng/mL6-67 ng/mL
20-39 Years20-345 ng/mL10-154 ng/mL
40-59 Years20-380 ng/mL10-232 ng/mL
>59 Years20-380 ng/mL20-288 ng/mL

Clinical Significance

Useful in the diagnosis of hypochromic, microcytic anemias. Decreased in iron deficiency anemia and increased in iron overload.

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