Protoporphyrins, Fractionation Whole Blood

• CPT Code: 8739
• LOINC:
• Specimen Type: Heparin
• Frequency: Setup: Mon-Friday; analytic time 2 days
• Instructions: Send full green top to Mayo, refrigerated. Must arrive within 72 hours of collection. Min 3.0mL whole blood.
• Text: Useful For: Establishing a biochemical diagnosis of erythropoietic protoporphyria;Differential diagnosis of chronic intoxication from exposure to a variety of causes including heavy metals and chemicals. Abstinence from alcohol for at least 24 hrs is essential for accurate results. Components: Z1023 Protoporph, Fract. Interp; Z1024 Free Protoporphyrin; Z1025 Zinc-Complx Protoporphyrin
• Methodology: High-Performance Liquid Chromatography (HPLC) with Fluorescence Detection