Why can't you give tPA after 4.5 hours?: The Critical Time Window Explained
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4 min read
Over half of all stroke patients who receive tPA still experience some level of disability, but for many with an acute ischemic stroke, this medication is a game-changer. However, its use is strictly limited to a narrow time frame. The question of why you can't give tPA after 4.5 hours is rooted in a critical balance between therapeutic efficacy and the escalating risk of catastrophic complications.
