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Flashcards in Head Injury Deck (12)
1

Name two excitatory amino acids which are released in the brain in response to head injury

Glutamate
Aspartate

2

What happens if you get loss of the blood brain barrier following a head injury?

Leucocyte infiltration into the brain resulting in inflammation.

3

What happens if you get loss of the cerebral autoregulation of blood pressure following a head injury?

Brain ischaemia

4

What happens if you get loss of the cerebral autoregulation of blood flow following a head injury?

metabolic de coupling causing ischaemia and further brain oedema

5

What is the normal ICP of an adult?

9-11mmHg

6

How are cerebral perfusions pressure (CPP), mean arterial pressure (MAP) and intracranial pressure (ICP) related (write an equation)

CPP = MAP - ICP

7

A patient present to A & E after a car accident. They have two very blackened eyes. What part of their skull base have they injured?

Anterior cranial fossa

8

A patient present to A & E after a car accident. The have a "battle sign" over their mastoid area. What part of their skull has been injured?

Middle cranial fossa

9

What are the thee things that define coma?

1. Does not open eyes
2. Does not obey commands
3. Does not speak

10

What score or below on GCS defines a coma?

8

11

Which 4 groups of patient with head injury need a CT?

1. Skull fracture
2. Not orientated (GCS less than 15)
3. Focal neurological signs
4. Taking anti coagulants (warfarin)

12

What CPP are you aiming for in a patient with a head injury?

Above 60mmHg