TBI #2 Flashcards
Normal ICP
5-10 mmHg
Abnormal ICP
greater than 20 mmHg
What activities can increase ICP?
Cervical flexion, percussion & vibration, coughing
Signs and symptoms of ICP:
Decreased responsiveness, impaired consciousness, severe HA, vomiting, irritability, papilledema, ↑d BP & ↓d HR
How much oxygen does the brain demand?
20% of body’s oxygen
Areas vulnerable to lack of oxygen
Hippocampus (Memory storage area)
Cerebellum
Basal Ganglia
Seizure:
discrete clinical event reflecting temporary, physiologic brain dysfunction, characterized by excessive hypersynchronous cortical neuron discharge
Events that trigger seizures:
Stress, poor nutrition, electrolyte imbalances, missed mediations or drug use, flickering lights, infection, fever, worry, and fear
GCS mild:
13-15
GCS moderate:
9-12
GCS severe:
less than 8
Stage 1 of Recovery Stages from Diffuse Axonal Injury
coma
Stage 2 Recovery Stages from Diffuse Axonal Injury
Unresponsive Vigilance/vegetative state
Stage 3 Recovery Stages from Diffuse Axonal Injury
Mute responsiveness/minimally responsive (pt. is not vegetative and DOES show signs, even if intermittent, of fluctuating awareness
Stage 4 Recovery Stages from Diffuse Axonal Injury
Confusional State (disturbance of attention mechanisms; all cognitive operations are affected, patient is unable to perform new memories. Can have hyper/hypo arousal)