Ferritin (by CMIA) 鐵蛋白	R020
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Specimen Required 3 mL Pl (1 mL serum)	Schedule Monday-Saturday
Specimen Stability Ambient: 24 hr Refrigerated: 8 days Frozen: 1 month
Reference Interval: Conv. Units Females (95 %ile) 4.6 - 204.0 ng/mL (Median 39.0 ng/mL) Males (95 %ile) 21.8 -274.0 ng/mL (Median 75.0 ng/mL) Iron deficiency < 10.0 ng/mL Hemochromatosis > 1000.0 ng/mL
Reference Interval: S.I. Units Females (95 %ile) 4.6 - 204.0 ug/L (Median 39.0 ug/L) Males (95 %ile) 21.8 - 274.0 ug/L (Median 75.0 ug/L) Iron deficiency < 10.0 ug/L Hemochromatosis > 1000.0 ug/L
Reference Notes and Guidelines Click here for more details. Reference Notes and Guidelines Ferritin is most useful for the diagnosis of iron deficiency and iron overload conditions. It is also useful in differentiating microcytosis in red blood cells due to iron deficiency from microcytosis due to thalassemia minor. In hemochromatosis or iron overload, very high values (> 1000 ng/mL) are typically found. If malignant, hepatitic or other chronic disease states are present, the Ferritin test may not be of value in evaluating iron deficiency as values may be elevated.

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