Tissue plasminogen activator(t PA)use in the treatment of ischemic stroke:t PA is a serine protease that catalyzes the breakdown of blood clots.Because of its thrombolytic properties,t PA is used to treat specific types of stroke,including ischemia,but is contraindicated for treatment of hemorrhagic stroke or head trauma.Although a life saving and powerful‘clot buster’,t PA has a
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