Catecholamine Fract, Free, Plasma

• CPT Code: 82384
• LOINC:
• Specimen Type: Plasma in Special Mayo collection tube T066 - 2 full tubes
• Frequency: Setup: Mon-Fri; analytic time 2 days
• Instructions: Use special EDTA tube T066 from Mayo. Must be collected from indwelling IV Catheter. Mayo recomends P. Metanephrines instead - ZG151
• Text: Useful for Diagnosis of pheochromocytoma and paraganglioma, as an auxiliary test to fractionated plasma and urine metanephrine measurements. Plasma metanephrine is the preferred test for this diagnosis. See Mayo website for extensive collection information. Components: Z0138 Catecholamine Free, P; Z0139 Norepinephrine; Z0140 Epinephrine; Z0141 Dopamine; Z0142 Specimen Collected.
• Methodology: High-Performance Liquid Chromatography (HPLC) Includes unconjugated norepinephrine, epinephrine, and dopamine