Homovanillic Acid (HVA) is a major catecholamine metabolite that is produced by a consecutive action of monoamine oxidase and catechol-O-methyltransferase on dopamine. HVA is used as a reagent to detect oxidative enzymes, and is associated with dopamine levels in the brain.
STARTS AT ₱9,800.00
This is requested by clinicians for the following medical conditions:
- Diagnosis of Autism Spectrum Disorders and inborn errors of metabolism
- Management of patients with relapsing-remitting multiple sclerosis
- Diagnosis and monitoring of treatment for catecholamine secreting carcinoid tumors
Patient Preparation
Limit water intake to 2 liters of water and avoid caffeine before the day of collection
No intake of citrus fruit, pineapple, grapes and tomato 3 days prior the test
3 days prior, stop all non-essential medications such as amino acid supplements, melatonin, 5-HTP, laxatives, and teas.
Patient Preparation
- Limit water intake to 2 liters of water and avoid caffeine before the day of collection
- No intake of citrus fruit, pineapple, grapes and tomato 3 days prior the test
- 3 days prior, stop all non-essential medications such as amino acid supplements, melatonin, 5-HTP, laxatives, and teas.
Method: Liquid Chromatography Tandem Mass Spectrometry
Specimen Volume Requirement: 20ml midstream urine (First Morning)
Turnaround time: Cut off every Tuesday 4PM, release by Friday 12NN
Storage: -20°C Freezer, and ship on ice
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