Vanillylmandelic Acid (VMA), Urine

3 Day(s)

المجموعة المرجعية

Vanillylmandelic Acid (VMA) is an end-stage metabolite of the catecholamines epinephrine and norepinephrine. It is produced via intermediary metabolites. VMA is found in the urine, along with other catecholamine metabolites. This test is used as a marker for three types of tumors: pheochromocytoma, neuroblastoma and ganglioneuroma. Patients with essential hypertension occasionally have borderline increased values for urinary VMA. Other related tests: Catecholamines and Metanephrines.

متطلبات خاصة

Use 30 mL 6% HCl as a preservative. Adjust pH to 1-2. State 24 Hrs urine volume. Observe special diet three days prior the testing. Avoid: alcohol, coffee, tea, tobacco (including the nicotine patch), bananas, citrus fruits, chocolate, carbonated drinks, walnut, candy, mint, jelly, gelatins, cheese and vanilla. Avoid excessive exercise and ovet-the-counter drugs such as Aspirin.

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