Vanillyl Mandelic Acid, 3-methoxy-4-hydroxymandelic acid, 4-Hydroxy-3-methoxymandelic acid, HMMA
Random Urine (yellow pot)
Turn Around Time
- VMAs are no longer regarded as the test of choice in screening for phaeochromocytoma. VMA requests for phaeochromocytoma are forwarded for urine metanephrine analysis.
- VMA and HVA requests are reserved for the diagnosis of neuroblastoma.
- For patients <15 years, forward sample to LabPlus for HVA urine ratio.
- Acidify urine within 2 hours of collection
External Referral Information
LabPlus (via WHL)
External Lab Website