NEUROBLAST OMA PROFILE, 24- HOUR URINE
Vanil Mandelic Acid (VMA), Homovanilic Acid (HVA)
50 mL (10 mL min.) aliquot of 24-hour urine. Collect urine with appropriate volume of 50% HCl to maintain pH between 1–2. Do not use concentrated HCl. Record 24 hour volume on test request form and urine container. Ship refrigerated or frozen. Patient should strictly avoid L-Dopa, Theophylline, chocolate, vanilla, banana, alcoholic beverages, tea/coffee, tobacco and strenuous exercise at least 72 hrs before and during specimen collection.
High Performance Liquid Chromatography
Sample by Tue, Fri 1 pm
Report 4th Day Evening
Also see NEURON SPECIFIC ENOLASE.