Dopamine, Random Urine, Norepinephrine, Random Urine
11 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Causes for Rejection Specimen with no preservative, original container with pH >5
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Quantifies free catecholamines in a 24-hour urine. Diagnoses pheochromocytoma and related conditions.
24 hour urine
30 mL aliquot
Brown urine container with 30 mL 6N HCl preservative. Caution: Strong acid. May cause skin burns.
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 |
|---|---|
| Refrigerated | 14 days |
| Frozen | 30 days at -70°C |