VMA Urine 24 Hours test measures vanillylmandelic acid levels in urine to help detect certain adrenal gland tumors and evaluate catecholamine metabolism.
The VMA (Vanillylmandelic Acid) – Urine 24 Hours test measures the amount of vanillylmandelic acid excreted in the urine over a 24-hour period. VMA is a breakdown product of hormones called catecholamines, such as adrenaline and noradrenaline, which are produced by the adrenal glands.
This test is commonly used to help detect certain types of tumors that affect the adrenal glands or nerve tissue, such as pheochromocytoma or neuroblastoma. Abnormal levels of VMA in urine may indicate excessive production of catecholamines in the body.
Follow the diet restrictions given by your doctor before and during the test.
Avoid foods like bananas, chocolate, vanilla, coffee, tea, and citrus fruits before the test.
Inform the doctor about any medications you are taking, as some may affect test results.
Collect all urine for the full 24-hour period as instructed.
Store the urine container in a cool place or refrigerator during the collection period if advised.
