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학습 자료 둘러보기 →A decreased level of consciousness is the most sensitive indicator of rising ICP. As pressure compromises the reticular activating system, the patient progresses from confusion to stupor and coma. This is a neurological emergency signaling failing autoregulation.
The onset of abnormal posturing indicates severe brain compression. Decorticate posturing (arms flexed to core) suggests a lesion above the midbrain, while decerebrate posturing (arms extended and rotated) implies brainstem involvement and is a more ominous sign preceding herniation.
Do not rely on headache or vital sign changes alone. Cushing's triad (hypertension, bradycardia, irregular respirations) is a late and often unreliable sign. A dropping level of consciousness with posturing demands immediate reporting and preparation for emergency ICP management.
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