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Test Code FERR Ferritin LAB68

Important Note

Human Anti-Mouse Antibodies (HAMA) may be present in samples from patients who have received immunotherapy utilizing monoclonal antibodies. Additionally, other heterophile antibodies such as human anti-goat antibodies may be present in patient samples. Manufacturers formulate assays to minimize the effects of these antibodies; however careful evaluation of patient results must be done when patients are known to have such antibodies.

Performance

Testing is performed Monday through Sunday.

Routine: Typically completed within 4 hours after the specimen arrives at the testing site.

STAT: Typically completed within 1 hour after the specimen arrives at the testing site.

Useful For

Diagnosing iron deficiency and iron-overload conditions and differentiating iron deficiency anemia and anemia of chronic disease.

Specimen Requirement

0.5 mL serum or plasma is required.

Collect blood in a lithium heparin, green-top or red-top tube. PST and SST (gel tubes) are acceptable. Serum or plasma should be separated from contact with the cells within 2 hours of collection. Specimens not centrifuged within 4 hours of collection may be rejected. Refrigerate the specimen if unable to assay within 8 hours of collection. Hemolyzed specimens are not acceptable. Samples with >2+ lipemia must be cleared prior to analysis. Icterus may interfere with this analysis.

Method

Two-Site Immunoenzymatic ("Sandwich") Assay; Beckman Access II

Reference Values

Male: 24-336 ng/mL

Female: 11-307 ng/mL

CPT Information

82728: Chemistry: Ferritin

LOINC Code Information

2276-4 Ferritin [Mass/Volume] In Serum Or Plasma