Nur 265 Exam 3 Study Guide Update for 2025.
• Normal ICP 10-15 mmHg, pressures 20 mmHg impair cerebral circulation • IICP is leading cause of death from head trauma in pts who reach the hospital alive. • Cerebral Perfusion Pressure (CPP) o Blood flow required to provide adequate oxygenation & glucose for brain metabolism o Maintenance above 70 mmHg o CPP= MAP-ICP ▪ MAP= (2xD) + S MAP NEEDS TO BE ATLEAST 80 3 • Compensation o First Response – CSF is shunted or displaced into the spine (compliance) o Next – Reduction of blood volume in the brain (autoregulation) o As ICP continues to increase cerebral perfusion decreases leading to brain tissue ischemia, edema, vasodilation then acidosis
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- 7 mai 2025
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nur 265 exam 3 study guide update for 2025