What might affect my test results? · Antidepressants and amphetamines · Physical or emotional stress · Caffeine · Bananas · Withdrawal from drugs or alcohol.
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6 Dec 2019 · Normal urine levels of metanephrine and normetanephrine mean it is unlikely that you have a tumor that produces catecholamines. This test is ...
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19 Mar 2021 · Normal urine metanephrine and normetanephrine results mean it is unlikely that the patient has a catecholamine-secreting tumour. Because the ...
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Some specific causes of low Metanephrine may include: - Metyrosine treatment (This is the treatment for pheochromocytoma.) ...
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Increased metanephrine and normetanephrine levels are found in patients with pheochromocytoma and tumors derived from neural crest cells. Total urine ...
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This conversion is catalyzed by intracytoplasmatic COMT. Because metanephrine is continuously released into the bloodstream, reduced plasma metanephrine levels ...
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A 24-hour urine collection for fractionated metanephrines can be recommended for patients at low risk; vanillylmandelic acid (false-positive rate in patients at ...
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It also has been reported that plasma free metanephrines are affected by other diseases [,]. Plasma free metanephrines have been found to be elevated in ...
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The best available screening tests for pheochromocytoma have good sensitivity, yet the rarity of pheochromocytoma in people with suggestive symptoms (such as ...
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8–10 Undercollection or overcollection of 24-hour urine is the most common error in urinary collection accuracy.8 Excessively high urine volumes will lead to ...
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Withdrawal from medical or recreational sedatives such as alcohol, benzodiazepines, opioids and central acting anti-hypertensive drugs; Tricyclic ...
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23 May 2018 · The urine metadrenaline test can be used to help detect the presence of phaeochromocytomas. Only 0.1-0.6% of cases of high blood pressure are ...
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1 Sept 2007 · Urine or plasma metanephrine levels between 1 and 2 times the upper limit of normal were considered equivocal or “borderline-elevated” results.
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Metanephrines free, urine. NMN (Normetanephrines), urine. Normetanephrine, (NMN), free. Normetanephrines, urine. Fractionated metanephrines ...
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Learn about Catecholamines - urine, find a doctor, complications, outcomes, ... Urine metanephrine; Normetanephrine; Norepinephrine - urine test; ...
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