-
- M McPhaul, H A Punzi, A Sandy, M Borganelli, R Rude, and N M Kaplan.
- JAMA. 1984 Nov 23; 252 (20): 286028622860-2.
AbstractThe dipping of snuff provoked paroxysmal hypertension that induced myocardial ischemia in a 69-year-old woman with pheochromocytoma. The diagnosis of her tumor was delayed by a report of a falsely low urine metanephrine level, resulting from interference with the metanephrine assay by meglumine present in the urine because of contrast coronary angiography performed on the day of urine collection.
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