The patient became normotensive and plasma metanephrines
improved, but did not return to normal.
measurements are warranted to assess/ exclude their hormonal activity.
levels were normal at the time of consultation and prior to surgery.
which are described as 3-hydroxy-2-methylpyridine-4,5-dicarboxylate, L-dopa, DL-dopa, metanephrine
, and phosphoguanidinoacetate respectively.
2004) Measured urinary concentrations of MHPG-sulphate, nor- metanephrine
, and metanephrine
, salivary concentrations of cortisol and testosterone, assessment of mood status using POMS, an overtraining questionnaire, and muscle soreness ratings.
40) Measurement of 24-hour urinary catecholamines and their metabolites has been the screening test of choice, (43) but recent evidence suggests that measurement of plasma metanephrine
and normetanephrine is a far more sensitive screen.
Measurements of plasma methoxytyramine, normetanephrine, and metanephrine
as discriminators of different hereditary forms of pheochromocytoma.
Within the tumor itself, epinephrine (Epi) is metabolized to metanephrine
and norepinephrine (NE) is metabolized to normetanephrine by the enzyme catechol-O-methyltransferase.
Subsequently, urinary free cortisol (UFC) (normal range: <110[micro]g), urinary normetanephrine (normal range: 88-444 [micro]g/day) and urinary metanephrine
(normal range: 52-341 [micro]g/day) were measured and the 1 mg overnight dexamethasone suppression test (DST) was performed.
28) Elevated levels of urinary metanephrine
or resting plasma catecholamines can suggest the diagnosis of pheochromocytoma.
3) Diagnosis may be made with 24 hr urine metanephrine
or catecholamine measurement, 123I-metaiodobenzylguanidine scintigraphy (MIBG) scanning, or on pathological analysis after resection of an adrenal tumor.
dehydroepiandrosterone sulfate (DHEA-S), serum baseline 17-hydroxyprogesterone (17-0HP), urinary metanephrine
, normetanephrine, vanilylmandelic acid (VMA) excretion, low-dose 2 mg dexamethasone suppression tests, plasma aldosterone and renin activity.