Test ID: ZG063
Component(s): Z0139 Norepinephrine, Pl LOINC: 2666-6, Z0140 Epinephrine, Pl LOINC: 2230-1, Z0141 Dopamine, Pl LOINC: 2216-0
CPT code: 82384
LOINC:
Specimen Type: Lav (EDTA) tube or green-top (heparin) tube
Frequency: 4 – 6 days
Instructions: 3 mL Plasma from Lav (EDTA) tube or green-top (heparin) tube, Frozen, Draw through indwelling catheter, Freeze within 1 hour. Min 2.2 mL
Text: Used to diagnose pheochromocytoma and those paragangliomas which may secrete epinephrine, norepinephrine, or both. Such tumors may cause paroxysmal or persistent hypertension. Investigation of hypertensive patients, especially younger individuals, particularly when hypertension is paroxysmal, suggesting pheochromocytoma.
Methodology: High-pressure liquid chromatography (HPLC) with electrochemical (EC) detection