OVERVIEW:
What is the catecholamines group of tests (24 hours urine) lab test?
A catecholamines group of tests (24 hours urine) lab test is a urine test that measures the total amount of catecholamines released into the urine in 24 hours.
Why is the catecholamines group of tests (24 hours urine) lab test done?
A catecholamines group of tests (24 hours urine) lab test is done in order to:
- Diagnose pheochromocytoma (tumor of the adrenal gland),
- Diagnose paraganglioma (tumor formed from a specific type of nerve cells).
What is it used for?
To help confirm or rule out a rare tumor of the adrenal gland called a pheochromocytoma or a rare tumor outside of the adrenal gland called a paraganglioma; these tumors (PPGL) produce excess catecholamines, which are broken down to metanephrines
What does a catecholamines group of tests (24 hours urine) lab test measure?
A catecholamines group of tests (24 hours urine) lab test measures the total amount of catecholamines released into the urine over a period of 24 hours. Catecholamines are substances released into the blood in response to physical or emotional stress.
Are there any risks associated with this test?
There are no known risks associated with this test.
How should I prepare for this test?
Your doctor may recommend you to stop taking certain medicines before the test. Avoid physical and emotional stress and vigorous exercise before the test.
How should I store the 24 hour urine sample?
It is necessary to refrigerate the sample during this time. A preservative may be provided with the collection container.
Is it really necessary to collect urine for 24 hours?
Yes, it is absolutely necessary to collect all of the urine produced in the 24 hours period.
Can my state of mind affect my test result?
Yes. Emotional stress has a huge impact on the result of this test.
Normal level of total urine catecholamines is 14 – 110 mcg/24 hours.
A catecholamines group of tests (24 hours urine) lab test is done in order to:
- Diagnose pheochromocytoma (tumor of the adrenal gland),
- Diagnose paraganglioma (tumor formed from a specific type of nerve cells).
