Occurs whenever there is increase in the bulk of the brain
Bulk of the brain
Brain tissues
Blood supply
CSF
Disorders that increase the bulk of the brain tissues
Space-occupying lesions (e.g., cerebral tumor, abscess, edema (due to infection or trauma))
Factors that increase the blood supply to the brain
Cerebral hemorrhage
Thrombosis
Embolism
Aneurysm
Arteriovenous malformation (AV malformation)
Factors that increase the bulk of CSF
Obstruction to the flow of CSF caused by a brain tumor or ventricular system defects (hydrocephalus)
Overproduction of CSF caused by a tumor in the choroid plexus
Increased ICP causes cerebral hypoxia
Clinical manifestations of increased ICP
Restlessness
Headache
Nausea and vomiting
Diplopia (double vision)
Altered level of consciousness
Vital signs changes - stimulation of Cushing's reflex in response to cerebral hypoxia
Cushing's triad
Elevated systolic blood pressure
Bradycardia
Slow, irregular respiration
Widening pulse pressure is more than 40 mm Hg (S-D= PP)
Pupillary changes
Anisucuria (unequal pupil)
Pinpoint pupils
Fixed, dilated pupils
Papilledema
Compression of the CranialnerveII
Lateralizingsign
Contralateral (opposite side) loss of motor function due to decussation of motor fibers at the level of medulla oblongata
Brainstem function impairment
Doll's Eye sign
Decorticate posturing
Decerebrate posturing
Alterations in sensory function (agnosia), motor function (seizures), language and speech (expressiveaphasia, receptive aphasia, alexia), bowel and bladder function (retention or incontinence)
Collaborative management for clients with increased ICP
Position the client in Semi-fowlers, lateral position
Promote adequate oxygenation with mechanicalventilation
Promote safety with paddedside-rails
Promote complete bed rest
Avoid activities that increaseICP
Pharmacologic management
Mannitol (Osmitrol)
Dexamethasone (Decardron)
Anti-convulsants medications
Histamine 2 (H2) Receptor Antagonist
Seizures are sudden, excessive, disorderly electrical discharges of the neurons
Types of seizures
Grand mal seizure
Petit Mal (Absence Seizure/Little Sickness)
Jacksonian (Focal seizure)
Psychomotor seizure
Febrile seizure
Status epilepticus
Collaborative management for seizure disorder
Stay with the client
Protect the client from injury
Promote patent airway
Pharmacologic management for seizure disorder
Hydantoins (Phenytoin, Dilantin)
Nursing interventions in Phenytoin (Dilantin) therapy
Side effects and adverse reactions of Phenytoin (Dilantin)
Gingival hyperplasia
Neurologic and psychiatric effects
Bone marrow suppression
Hyperglycemia
GI effects
Drowsiness, headaches, alopecia, hirsutism
Urine output discoloration
Collaborative management for altered level of consciousness
Maintain stimulation
Maintain nutrition
Maintain elimination
Maintain circulation
Maintain normal body temperature
Promote safety
Promote activity
Maintain skin integrity
Maintain good hygiene
Support family
Cerebrovascular accident (CVA)
Disruption of the blood supply to the brain, causing neurologic deficit
Causes of CVA
Thrombosis
Embolism
Cerebral hemorrhage
CVA due to thrombosis and embolism may occur during sleep or rest period, while CVA due to hemorrhage is associated with activities and occurs during waking hours
Transient ischemic attack (TIA)
Transient cerebral ischemia with temporary episodes of neurologic dysfunction
Clinical manifestations of CVA
Signs and symptoms of increased ICP
Perceptual defects
Sensory deficits (Agnosia)
Motor deficits (Apraxia, Agraphia)
Homonymous hemianopsia
Aphasia (Expressive, Receptive, Global)
Severely limited
Spoken output
Frontal lobe
Broca's area
Aphasia
Producing speech
Temporal lobe
Wernicke's area
Understanding & processing speech
Cleveland Clinic
Universidad DeDagupan
Arellano St., Dagupan City
College of Health Sciences-Nursing Department
Nutrition and Gastrointestinal, Metabolism, Coordination, Acute and Chronic
Increased ICP
Increase in the bulk of the brain
Bulk of the brain
Brain tissues
Blood supply
CSF
Space-occupying lesions
Disorders that increase the bulk of the brain tissues (e.g., cerebral tumor, abscess, edema)
Factors that increase the blood supply to the brain
Cerebral hemorrhage
Thrombosis
Embolism
Aneurysm
Arteriovenous malformation
Factors that increase the bulk of CSF
Obstruction to the flow of CSF caused by a brain tumor or ventricular system defects (hydrocephalus)
Overproduction of CSF caused by a tumor in the choroid plexus