Brain injury Flashcards
Types of Brain injury
ABI and TBI
Types of ABI
Traumatic and non-traumatic
Causes of TBI
- Road traffic accidents
- Slipping and falling
- Sports-related
- being hit in the head
- violently shaken
Severity rating
Minor: LoC- less than 15 mins, Amnesia- less 1h
Moderate: LoC- 15m-6h, Amnesia- 1h-24h
Sever: LoC: 6h-48h, Amnesia- 24h-7d
V. Sever: LoC 48h+, Amnesia- 7d+
Types of TBI
Closed
- Sudden acceleration/deceleration/change of direction
- the brain is traumatised/rattled within the skull
- blood vessels can rupture causing bleeding around/ between the brain and skull
- can result in diffusion axon injury: which is where there is a separation/disturbance between the white and grey matter
Open
injury than causes the skull to be penetrated common if hit with a sharp object
Crushed
The brain is compressed between 2 things
Types of brain bleeds
Epidural: Above the dura
Subdural: Below the dura
Subarachnoid: Only thing below it is the brain
Signs and symptoms of a TBI
- Difficulty concentrating
- Head pain
- Nausea
- dizziness
- vomiting
- Change in emotions
- Changes in consciousness
- altered memory
- dilated pupils
- difficulty breathing
- clear fluid leaking from the eye, nose, ears
- bruising and swelling
- changes in speech
- changes in vision such as blurred
Anoxic and hypoxic what is and their possible causes
Anoxic: complete loss of oxygen supply to the brain, Hypoxic there is still a small amount of oxygen.
Possible causes Extremely low BP after a trauma Chocking Suffocation Carbon monoxide poisoning Severe asthma attack Near drowning Exposure to high altitudes electric shock attempted suicide
Signs and symptoms of anoxic brain injury
All signs and symptoms are depended on what area of the brain has been affected possible: Loss of consciousness confusion dizziness nausea/vomiting changes in behaviour or sensation