We try to treat pt by addressing the underlying cause, not the symptoms or the #'s per se. While bradycardia could be caused by shock, bradycardiac could also be caused by the heart itself not pumping out enough blood due to too much betablockers or the pacemaker is not working. Therefore, you may not want to give Dopamine or NorEpi which will cause severe vasoconstriction. You can just use atropine