Dopamine, 24 Hours, Urine
Test Name: Dopamine, 24 Hours, Urine
Sample Type: 24-hour urine collection
About the Test:
The 24-hour urinary dopamine test measures the total amount of dopamine excreted in urine over a full 24-hour period. Dopamine is a catecholamine involved in nervous system function and regulation of blood pressure.
Why is it Done?
- Evaluation of suspected catecholamine-secreting tumors such as pheochromocytoma and paraganglioma
- Investigation of unexplained episodes of high blood pressure, headache, sweating, or palpitations
- Monitoring catecholamine production when clinically indicated
Sample Collection:
Collect all urine passed over a complete 24-hour period in the designated container. Follow the laboratory's collection and storage instructions carefully.
Important: Certain medications, foods, supplements, stress, and physical activity may affect results. Follow your healthcare provider's instructions regarding preparation.
Clinical Significance:
Abnormal dopamine levels should be interpreted along with symptoms, medical history, medications, and other catecholamine/metanephrine investigations.