Plasma and 24 h-urinary catecholamine concentrations in normal and patient populations.
Using a single HPLC-ECD methodology, plasma catecholamine data were compiled from 545 patients and 144 healthy subjects, and 24 h urinary free catecholamine data from 106 patients. From these data, normal reference ranges were derived for the clinical investigation of suspected phaeochromocytomas, specifically to address the question as to when a result is normal and when further investigation may be required. We have shown that noradrenaline and adrenaline concentrations in plasma and urine ...Expand abstract
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