{"id":3156,"date":"2026-05-27T12:34:01","date_gmt":"2026-05-27T20:34:01","guid":{"rendered":"https:\/\/www.nicolekupchikconsulting.com\/news\/?p=3156"},"modified":"2026-05-27T12:34:02","modified_gmt":"2026-05-27T20:34:02","slug":"understanding-intracranial-pressure-icp","status":"publish","type":"post","link":"https:\/\/www.nicolekupchikconsulting.com\/news\/understanding-intracranial-pressure-icp\/","title":{"rendered":"Understanding Intracranial Pressure (ICP)"},"content":{"rendered":"\n

Patients who have had strokes, head injuries, hydrocephalus, tumors, craniotomies, vascular issues, ruptured aneurysms, hemorrhages, hepatic encephalopathy and infections have reasons to have intracranial hypertension which means elevated ICP.\u00a0 As nurses, caring for critically ill patients, it\u2019s essential we understand ICP, what it means for our patients and the nursing interventions to manage it. Understanding and recognizing elevated ICP is vital to preventing a terrible outcome.<\/p>\n\n\n\n

The Monro-Kellie doctrine states that the cranium is a limited space that encompasses the brain tissue, blood and cerebral spinal fluid.\u00a0 Any increase in one of these components necessitates a change in the volume of another, now referred to as MK 1.0\u00a0 \u201cAny increase in the volume of one component must be compensated by a proportional reduction in another to maintain stable ICP\u201d\u00a0<\/strong> Rabelo (2021).<\/p>\n\n\n\n

There have been advancements to the Monro-Kellie doctrine to add MK 2.0, 3.0 and 4.0.\u00a0 It is now understood that venous outflow from the brain can be impacted by external factors such as increased intrathoracic or intra-abdominal pressure or mechanical compression to the jugular veins. MK 2.0 states that venous occlusion or impaired outflow can independently increase ICP outside of arterial or CSF changes. MK 3.0 is yet a newer concept which states that with idiopathic intracranial hypertension and normal pressure hydrocephalus, the brain can undergo cerebral morphologic changes as well the skull can undergo remodeling. MK 4.0 underscores the importance of a multimodal approach to understanding cerebrovascular dynamics.\u00a0Brasil (2025) explains:<\/p>\n\n\n\n

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\u201cThe core concept of MK 4.0 recognizes that in neuro emergencies such as traumatic brain injury (TBI), subarachnoid hemorrhage (SAH), and ischemic stroke per example, cerebrovascular autoregulation (CA), the glymphatic system (GS) and cerebral compensatory reserve are key determinants of ICP regulation and patient outcomes.\u201d<\/p>\n<\/blockquote>\n\n\n\n

How to measure ICP:<\/h2>\n\n\n\n