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Catecholamines, Plasma and Urine
Also known as: Dopamine, Epinephrine, Norepinephrine, Free Urine Catecholamines
Formal name: Catecholamines, Plasma and Urine
Related tests: Plasma Free Metanephrine, Urine Metanephrines, Vanillylmandelic acid (VMA)
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Common Questions
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1. Is there any way to prevent a pheochromocytoma from forming?
2. Is it really necessary to collect urine for 24 hours?
3. Can my state of mind really affect my test results?
1. Is there any way to prevent a pheochromocytoma from forming?
No, they can be detected and removed but not prevented. In most cases, the tumor is benign and, once it is removed, it will not recur.
2. Is it really necessary to collect urine for 24 hours?
Yes, for accurate test results it is essential that all of the urine be collected. Because catecholamines are released at varying times, the one sample not included might be the one with the most hormones in it.
3. Can my state of mind really affect my test results?
Yes, because catecholamines are released from the adrenal glands in response to stress. If you are anxious or afraid, your catecholamines concentrations may be increased.
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This article was last reviewed on
October 31, 2008
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