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HelpHomovanillic Acid (HVA)/ Vanilmandellic Acid (VMA)
Collection Requirements
Source: urine
Container: sterile cup
Volume: 2-5 mL
Turn Around Time
1-3 days
Batched testing performed Monday, Wednesday, and Friday
Must be received in the Toxicology lab by 7:00 a.m. to be included in the batch
Availability
Routine
Includes
Homovanillic Acid (HVA) and Vanilmandellic Acid (VMA)
Lab Processing Instructions
Specimen: urine
Refrigerate
Performing Laboratory
Adele Hall
Adele Hall Lab Section
Toxicology
Instrumentation/Methodology
Gas Chromatography/Mass Spectrometry (GC/MS)
Results determined by assays using different methodologies and/or manufacturers may not be comparable
Reference Ranges
HVA
| Age | mg/g creatinine | mg/24 hours |
|---|---|---|
| 0-12 months | < 32.6 | <2.8 |
| 1-4 years | < 22.0 | <4.7 |
| 5-9 years | < 15.1 | <5.4 |
| 10-19 years | < 12.8 | <7.2 |
| > 19 years | < 7.6 | <8.3 |
VMA
| Age | mg/g creatinine | mg/24 hours |
|---|---|---|
| 0-12 months | < 18.8 | <2.3 |
| 1-4 years | < 11.0 | <3.0 |
| 5-9 years | < 8.3 | <3.5 |
| 10-19 years | < 8.2 | <6.0 |
| >19 years | < 6.0 | <6.8 |
CPT
84585
83150
82570