urine norepinephrine level calculated urine norepinephrine level 2013-06-14T16:18:30Z A measurement which has been normalized, adjusted or derived by a mathematical process or computation of the amount of norepinephrine, a catecholamine hormone and neurotransmitter, secreted by the adrenal medulla and the nerve endings of the sympathetic nervous system, that causes vasoconstriction and increases heart rate, blood pressure, and blood sugar level, in a specified sample of urine, the fluid waste product excreted by the kidneys. CMO:0001633 JSmith calculated urine noradrenalin level clinical_measurement_ontology