Dopamine, Random Urine, Norepinephrine, Random Urine
13 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
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Random urine test for free catecholamines. Used when 24-hour urine is not feasible.
Random Urine
10 mL
Use random urine transport tube containing 6N HCl
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.
Random urine collection. NOTE: If original container is received with pH >,3, but <,5, adjust pH to <,3 with 6N HCl.
| Temperature | Period |
|---|---|
| Room temperature | 3 days |
| Refrigerated | 14 days |
| Frozen | 30 days at -70°C |