Know about Urinary epineprine
A-Methyldopa is a specific interfering drug in catecholamine determination and must be stopped for at least 3 weeks before collecting urine for analysis. It can interfere with metanephrine and normetanephrine measurements. Urinary epinephrine and norepinephrine excretion remains a reliable method for the detection of pheochromocytoma, but less so for neuroblastoma or the occasional tumor in which the catecholamines are largely methylated in the tumor or consist principally of dopamine metabolites. The separate detection of urinary epinephrine and norepinephrine is diagnostically helpful and not difficult.ICD10 Training Online. will help you to do collections and also the pending amounts from the patients.