HVA
10 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
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Urinary marker of dopamine metabolism. Used in neuroblastoma monitoring.
Urine
4 mL aliquot
Plastic urine container (6N HCl is optional)
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |