these two forms probably represent two expreme poles in the spectrum of eh in which sympathetic and renin hyper- or hyporeactivity can not be accounted for by catecholamine determinations solely . beta-adrenergic responsiveness monitored by plasma cyclic amp determinations revealed plasma cyclic amp , renin and circulatory hyperresponsiveness to isoproterenol in borderline hyperadrenergic eh while the opposite , cyclic amp and renin hyporesponsiveness to insulin-induced hypoglycemia have been described in low renin stable eh .
C0007412
catecholamine
C0022245
isoproterenol