| Her serum aldosterone, potassium, renin, 24-hour urine metanephrine levels, and dexamethasone suppression test results were within normal limits. |
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| Measurements of plasma methoxytyramine, normetanephrine, and metanephrine as discriminators of different hereditary forms of pheochromocytoma. |
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| We present evidence suggesting inaccurate metanephrine and normetanephrine calibration by US laboratories. |
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| Subsequently, urinary free cortisol, urinary normetanephrine and urinary metanephrine were measured and the 1 mg overnight dexamethasone suppression test was performed. |
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