Sample Type: 24HRS URINE
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Catecholamines are hormones produced by the adrenal glands. This test is done in patients with persistent hypertension to rule out a tumor of the adrenal gland called pheochromocytoma, or if there are signs indicating or a family history of such a tumor. May also be ordered to monitor treatment for such a condition.
This test requires a 24 hour collection. Empty your bladder completely first thing in the morning and collect urine everytime you go to the toilet for the next 24 hours, including the first time the next morning.