How long do Metanephrines test results take?
How long does the test take? The test will last between 30 and 60 minutes. You will be asked to lie down for approximately 30 minutes, then a blood sample will be taken by an endocrine nurse specialist and sent to an external lab to be tested. There is usually a wait of three to four weeks for the test results.
What is 24-hour catecholamine test?
A urine catecholamines test measures the total amount in your urine over a 24-hour period. That’s because hormone levels can go up and down during the day. You’ll pee into a special container every time you use the bathroom for 24 hours.
How is a metanephrine test done?
Blood for plasma free metanephrines testing is collected by inserting a needle into a vein in the arm. Although you may be seated for the collection, it is recommended that you be lying down. Your healthcare practitioner or the collection site will instruct you as to their specific requirements.
Do you have to fast for a metanephrines test?
Patient should be fasting overnight (water and non-caffeinated soft drinks are permissible). Patient should avoid alcohol, coffee, tea, tobacco and strenuous exercise prior to collection.
How long is a 24-hour urine sample good for?
All urine, after the first flushed specimen, must be saved, stored, and kept cold. This means keeping it either on ice or in a refrigerator for the next 24 hours. Try to urinate again at the same time, 24 hours after the start time, to finish the collection process. If you can’t urinate at this time, it is OK.
What is a metanephrine urine test for?
Urine metanephrines testing is used to help detect or rule out the presence of a rare tumor called a pheochromocytoma or a paraganglioma that releases excess metanephrines. Since these tumors (PPGL) produce these hormones in excess, measuring the amount in the blood and/or urine may help detect the tumors.
How long does catecholamines urine test results take?
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How do you collect 24 hour urine metanephrines?
For this sample, you must collect all of your urine for 24 hours. Empty your bladder completely first thing in the morning without collecting it. Note the time. Then collect your urine every time you go to the bathroom over the next 24 hours.