Urine norepinephrine

Norepinephrine is a hormone secreted by adrenal medulla, adrenal neurons and extra-adrenal chromosome. In addition to evaluating adrenal medullary function, this test can also determine the excitability of sympathetic nerves. Increased in patients with pheochromocytoma, ganglioneuroma and neuroblastoma. When the method detects VMA>35.3μmol/L, and there are other positive indications, angiography should be performed to confirm the diagnosis. If it is >69.7μmol/L, it can be diagnosed as pheochromocytoma after the influence of drugs and foods are excluded. And perform tumor localization for surgical resection. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Analysis results: Below normal: No clinical significance. Normal value: Urine norepinephrine: 10-70μg/L Above normal: Found in patients with pheochromocytoma, ganglioneuroma and neuroblastoma. negative: Positive: Tips: Try to use fresh morning urine when doing this check. The urine that is randomly selected is preferably mid-stage urine. Menstrual women are not suitable for this examination. Normal value 10 to 70 μg / L. Clinical significance Most of the catecholamines in the body are degraded and metabolized by the urine, and a small part can be directly discharged from the urine without metabolic degradation. Two of the metabolic pathways of catecholamines are treated with monoamine oxidase to form p-dihydroxymandelic acid; most of the catecholamines are converted to 3-methoxy-adrenalin or norepinephrine by catecholamine-0-methyltransferase. Finally converted to 3-methoxy-4-hydroxymandelic acid. Increased in patients with pheochromocytoma, ganglioneuroma and neuroblastoma. When the method detects VMA>35.3μmol/L, and there are other positive indications, angiography should be performed to confirm the diagnosis. If it is >69.7μmol/L, it can be diagnosed as pheochromocytoma after the influence of drugs and foods are excluded. And perform tumor localization for surgical resection. High results may be diseases: pheochromocytoma considerations Note during inspection: Fresh morning urine should be used as much as possible during this examination. The urine that is randomly selected is preferably mid-stage urine. Not suitable for the crowd: menstrual women. Inspection process Inspection process: As with routine urine tests, use a clean, dry container with a disposable urine cup and urine test tube provided by the hospital. Take about 10 ml of urine and send it to the designated inspection window of the hospital for examination by a doctor. Not suitable for the crowd Menstrual women. Adverse reactions and risks no.

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