<prompt> Which is not an endogenous catecholamine?IsoprenalineDopamineNoradrenalineAdrenaline  <response>: Ans. A. Isoprenalinea. Dopamine, adrenaline and noradrenaline are endogenous catecholamines,b. Dobutamine, fenoldopam, dopexamine and isoprenaline are exogenous catecholamines 