Frontal lobe:
Parietal lobe:
Temporal lobe: Correct Answers: Personality, motor function, motor speech, judgement
Sensation, pain interpretation, temperature
Auditory & speech
Monroe-Kellie Doctrine: Correct Answers: Balance of tissue, CSF & blood to create an equilibrium
Increase in one are must result in a decrease in another
If not, the ICP will increase: compression of venous blood, displacement of CSF
Causes of Intracranial HTN: Correct Answers: Trauma
Intracranial hemorrhage
Hydrocephalus
Cerebral edema
Stroke
Fever
External causes of Intracranial HTN: Correct Answers: Suctioning
Position changes
PEEP
Nursing care
Neuro Assessment: Correct Answers: LOC
Mentation: Are there changes?
Pupillary response: Equal & reactive
Glasgow coma scale measures what: Correct Answers: Best eye response
Best Verbal response
Best motor response
Signs of Increased ICP: Correct Answers: Change in LOC
Headache
Nausea/vomiting
Late changes: Correct Answers: Pupillary changes
, Dilation in one eye
Seizures
Monitoring ICP - Who should be monitored? Correct Answers: Early recognition of changes in ICP
Head injuries - GCS <8
Cerebral edema
Normal ICP:
Tx indicated if? Correct Answers: 0-15 mmHg
Sustained > 20 - 25 mmHg
Methods of monitoring ICP? Correct Answers: Intra-ventricular catheter
- used to drain excessive CSF & intermittently monitor ICP
Intraparenchymal:
monitor pressure only
AKA as a bolt
What's in an ICP waveform? Correct Answers: P1 - Percussion wave
P2 - Tidal wave
P3 - Dicrotic notch (closure of aortic valve)
What is significance of an elevated P2 wave? Correct Answers: Decreased compliance
Managing increased ICP: Correct Answers: Patient positioning - manage venous drainage
Prevent compression of Jugular veins
HOB - 30-45
Second Tier Interventions for ICP: Correct Answers: Mannitol 20% - osmotic diuretic
Hypertonic Saline (2%, 3%, 5%)
Loop diuretic
Mild hyperventilation (low normal PaCO2 35-40)
Keep CPP>60? T/F Correct Answers: True
Neuromuscular blockade (NMB): Correct Answers: Must ALWAYS be intubated & used with
continuous IV sedation
Goal 1-2 twitches out of 4