what are typical pheochromocytoma laboratory findings
Perform initial workup of pheochromocytoma using the history, physical examination, laboratory, and diagnostic test findings. The cornerstone of pheochromocytoma diagnosis is the measurement of norepinephrine, epinephrine, and their catabolic products in the urine. Increasing evidence supports the measurement of metanephrines, in either plasma or urine, for detection of pheochromocytomas.