Specimen: 50 mL (10 mL min.) aliquot of random urine. Add 50% HCl drop by drop to bring the pH between 1–2. Do not use concentrated HCl. Ship refrigerated or frozen. Patient should strictly avoid Theophylline, chocolate, vanilla, banana, alcoholic beverages, tea/coffee, tobacco and strenuous exercise at least 72 hrs before and during specimen collection.
Stability (Room): 8 hrs
Stability (Refrigerated): 7 days
Stability (Frozen): 30 days
Price: Contact Medilab
Turnaround time (TAT): 10 – 15 dyas
Usage: Elevated values of VMA along with other catecholamine metabolites are suggestive of catecholamine secreting tumor like Neuroblastoma, Pheochromocytoma and other Neural crest tumors. VMA levels may also be useful in monitoring patients who are also treated. Elevated levels are suggestive of Pheochromocytoma but not diagnostic.
Home Collection: Available
Pre-test Information: Patient should strictly avoid Theophylline, chocolate, vanilla, banana, alcoholic beverages, tea/coffee, tobacco and strenuous exercise at least 72 hours before and during specimen collection.