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Immunoassay reagents intended to perform qualitative and/or quantitative analyses on a body fluid sample (typically urine) to determine metanephrines, both normetanephrine and metanephrine, products from the metabolization of the hormones norepinephrine and epinephrine, respectively. Increased levels of urinary metanephrines are found in patients with catecholamine-secreting tumors.
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