Urine catecholamines (CA)

Catecholamines are hormones secreted by the adrenal medulla, adrenal neurons, and extra-adrenal chromophores, including epinephrine, norepinephrine, dopamine, and dopa. However, the adrenal medulla only releases adrenaline and norepinephrine, and is mainly adrenaline. Epinephrine and norepinephrine, which are released by hormones, have the effects of sympathetic nerves, promoting cardiovascular metabolism, promoting energy metabolism, and raising blood sugar. Determination of urinary catecholamines is valuable for the diagnosis of pheochromocytoma. Allow 24 hours of urine, use concentrated hydrochloric acid 5 ~ 10ml as a preservative, take 10ml for inspection. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: fasting Analysis results: Below normal: Reduced in Parkinson's disease, epilepsy, adrenalectomy, rheumatic fever, malnutrition, etc. Normal value: Urinary catecholamine (male): 43.7-157.6μg/24h Urinary catecholamine (female): 40.5-136.6μg/24h Above normal: Increased in pheochromocytoma, neuroblastoma, cerebral infarction, myasthenia gravis, progressive muscular dystrophy, hypoglycemia, myocardial infarction, manic psychosis, etc. negative: Positive: Tips: Avoid eating bananas, vanilloids, tetracycline, chlorpromazine, salicylic acid, vitamin B2 (riboflavin), antihypertensive drugs, etc. within 48 hours, and should stop taking 1 week of tea, coffee and other excitatory drinks, and Avoid fatigue and emotional stress. Normal value Male 43.7 ~ 157.6μg / 24h; female 40.5 ~ 136.6μg / 24h. Fluorescence analysis <1655nmol / 24h. Clinical significance Reduced in Parkinson's disease, epilepsy, adrenalectomy, rheumatic fever, malnutrition, etc. Increased in pheochromocytoma, neuroblastoma, cerebral infarction, myasthenia gravis, progressive muscular dystrophy, hypoglycemia, myocardial infarction, manic psychosis, etc. Low results may be diseases: pheochromocytoma, rheumatic fever, neuroblastoma considerations Before the test: avoid banana, vanilloid, tetracycline, chlorpromazine, salicylic acid, vitamin B2 (riboflavin), antihypertensive drugs, etc. within 48 hours, and should stop taking 1 week of excitatory drinks such as tea and coffee, and Avoid fatigue and emotional stress. When checking: Keep it relaxed and eliminate the anxiety and anxiety. Inspection process The urine of the subject was collected and detected by high performance liquid chromatography-mass spectrometry (LC-MS). Not suitable for the crowd Generally not. Adverse reactions and risks No.