Table 1. Biochemical investigations confirming the pheochromocytoma diagnosis.

	Patient values	Ref Range	Units
Test (Fractionated Plasma)
Testosterone Total	7	2 - 45	pg/mL
Testosterone, Free	0.7	0.1 - 6.4	pg/mL
Metanephrine	250	<=57	pg/mL
Metanephrine Total	13290	<= 205	pg/mL
Normetanephrine	13040	<=148	pg/mL
Aldosterone, Serum	5	<= 28	ng/dL
Renin Activity	175.94	0.25 - 5.82	ng/dL/h
Test (24-hour Urine Chemistry)
Aldosterone 24 hr	2	2.3 - 21.0	mcg/24 h
Testosterone Total	7	2 - 45	pg/mL
Testosterone, Free	0.7	0.1 - 6.4	pg/mL