increase intracranial pressure
DESCRIPTION
TRANSCRIPT
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Medical Surgical Nursing
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Increase Intracranial Pressure
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Brain
Brain tissue (1,400g) Blood (75mL) CSF (75mL) Normal ICP 10 to 20 mmHg
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Monro-Kellie Hypothesis
Limited space for expansion in the skull, an increase in anyone of the components causes a change in the volume of the others.
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Pathophysiology
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Increase ICP is a syndrome that affects many patients with acute neurologic conditions. This is because pathologic conditions alter the relationship between intracranial volume and pressure.
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Elevated ICP most commonly associated with head injury Secondary Effects
Brain tumors Subarachnoid hemorrhage Toxic and viral encephalities
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Brain TumorBrain Tumor
Decrease Cerebral Blood FlowDecrease Cerebral Blood Flow
Ischemia and Cell DeathIschemia and Cell Death Early Cerebral IschemiaEarly Cerebral Ischemia
Vasomotor Stimulation(brainstem)
Vasomotor Stimulation(brainstem)
Increase Systemic Pressure(s/sx slow pulse, cheyne-stokes
resp.,elevated temp.)
Increase Systemic Pressure(s/sx slow pulse, cheyne-stokes
resp.,elevated temp.)
Increase ICPIncrease ICP
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Diagnostic Findings
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Cerebral Angiography Computed Tomography (CT) Scanning Magnetic Resonance Imaging (MRI) Positron Emission Tomography (PET) Transcranial Doppler
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Cerebral Angiography
The first image shows normal brain blood flow
The second image shows presence of cerebral aneurysm that can cause decease cerebral blood flow may lead to increase ICP
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Computed Tomography Scanning The first image shows a
normal view of the brain
The second image shows brain with tumor and edema that may lead to increase ICP
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Magnetic Resonance Imaging The first image shows
normal MRI result The second image
shows with brain tumor that causes increase ICP
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Positron Emission Tomography The first image shows
normal PET result The second image
shows with brain tumor that may lead to increase ICP
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Transcranial Doppler
The top shows a TCD of a normal artery
Bottom shows a severely stenosed internal carotid artery causes decrease cerebral blood flow may lead to increase ICP
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Nursing Process
The Patient with Increased Intracranial Pressure
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Assessment
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History Present Illness Obtain Subjective Data
Neurologic examination Mental Status LOC Cranial Nerve Function Cerebral Function (balance and coordination) Reflexes Motor and Sensory Function Abnormal Respiratory Pattern
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Nursing Diagnosis
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Ineffective airway clearance related to diminished protective reflexes
Ineffective breathing patterns related to neurologic dysfunction
Ineffective cerebral tissue perfusion related to the effects of increased ICP
Deficient fluid volume related to fluid restriction
Risk for infection related to ICP monitoring system
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Planning and Goals
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Maintenance of patent airway Normalization of respiration Adequate cerebral tissue perfusion through
reduction in ICP Restoration of fluid balance Absence of infection Absence of complication
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Nursing Intervention
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Maintaining patent airway and adequate ventilation Monitor vital signs and neurochecks Maintain fluid balance Position client with head of the bed elevated 30 to
45 degrees and neck in neutral position Maintain a quiet environment Avoid use of restraints Prevent straining at stool Prevent excessive cough and vomiting Prevent complication of immobility Preventing infection Administer medication as ordered
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Evaluation
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Maintained patent airway Attains optimal breathing pattern Attains desired fluid balance Infection prevented Complications prevented