Erstellt von Jenn Webster
vor mehr als 2 Jahre
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Frage | Antworten |
90, 90, 9 Rule | SpO2 less than 90 Systolic BP less thn 90 GCS less than 9 doubles chance of death |
Types of head injuries | Open- dura mater & cranial contents are exposed Closed- blunt trauma, skull fracture, diffuse and focal brain injuries |
Skull Fractures | Linear Depressed Basilar Open |
Linear Skull Fracture | most common type break in bone, bone doesn't move 50% temporal-parietal region of skull injury to middle meningeal artery (extradural bleeding) |
Depressed Skull Fracture | High energy, direct blunt trauma to a small area with or without cut sunken in skull frontal and partial most common bony fragments can puncture the brain |
Basilar Skull Fracture | Break at base of skull Bruising behind ears or around eyes CSF leak |
Open Skull Fracture | severe force resulting in exposed brain multiple body system trauma high mortality rate |
Normal Intracranial Pressure (ICP) | 15mmHg |
Complications of a skull fracture | Intracranial haemorrhage Cerebral damage Cranial nerve damage |
Common Causes of Head Trauma | RTC's Assault Falls (over 65s) Sports incidents Infection Disease Strokes Paediatrics |
Types of hematomas | Epidural Subdural Uncal herniation |
Epidural Hematoma | Above dura mater collection of blood forms between dura mater and skull Usually artery torn by skull fracture symptoms: headache, LOC |
Subdural haematoma | Below dura mater Acute- like epidural but slower, venous or arterial subacute- venous Chronic- elderly alcoholics |
Uncal Herniation | Rising ICP causes portion of brain to move from one intracranial compartment to another Life threatening neurological emergency compresses 3rd cranial nerve oculomotor one sided pupil dilation |
Cerebral herniation | Brain tissue moves from one part to another Caused by swelling or pressure |
Signs of Cerebral Herniation | Unequal pupils Bilaterally fixed and dilated pupils Decerebrate posturing No motor response to pain |
Increased | Accumulation of blood or swelling of brain leads to increased pressure in cranial vault this squeezes the brain against bony prominences within cranium conin |
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