true or false: any organized rhythm without a pulse is defined as pulseless electrical activity (pea). true false true or false: fibrinolytic therapy is the treatment of choice for hemorrhagic stroke. true false true or false: the aorta is the wall that separates the ventricles of the heart. true false true or false: therapeutic hypothermia should be considered in the comatose adult after cardiac arrest. true false true or false: pea and asystole are considered non-shockable rhythms and follow the same acls algorithm. true false true or false: symptomatic bradycardia and poor perfusion may degrade into cardiac arrest. true false true or false: transcutaneous pacing should be used on an individual with bradycardia and inadequate perfusion if atropine is ineffective and the individual is exhibiting severe symptoms. true false true or false: urgent defibrillation is essential for survival in the management of acute strokes. true false true or false: 100% oxygen is acceptable for early intervention but not for extended periods of time. true false true or false: supplemental oxygen should never be given to an individual with acute stroke . true