|Test Code||PFRBC / PPFE-M|
|Test||PROTOPORPHYRINS, FRACTIONATION, ERYTHROCYTES|
|Methodology||High-Performance Liquid Chromatography (HPLC) with Fluorescence Detection|
Useful for establishing a differential diagnosis of erythropoietic protoporphyria, X-linked dominant protoporphyria, iron-deficiency anemia, and chronic lead intoxication.
Includes separate quantitation of zinc protoporphyrins and free protoporphyrins.
|Specimen||Whole Blood to be Washed at Mayo Medical Laboratories:
Specimen must arrive within 48 hours of draw. If specimen cannot arrive within 48 hours, please send washed erythrocytes and include the cell suspension information (see Mayo test #31891 Protoporphyrins, Fractionation, Washed Erythrocytes.)
1. Patient should abstain from alcohol for 24 hours.
|Reference Values||FREE PROTOPORPHYRIN
<20µg/dL packed cells
See "Porphyrinogens, Porphyrins, and Porphyrias".
|Analytic Time||2 Days|
|Day(s) Test Set Up||Monday through Friday|