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Flashcards in Papilloedema Deck (20)
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1

What is the definition of papilloedema?

Swollen optic discs secondary to raised inter cranial pressure

2

What is the emergency presenting with bilateral papilloedema?

Space occupying lesion.
It is a SOL until proven otherwise.

3

Which cranial nerve supplies the optic disc?

CN II

4

What 3 things should be commented on when viewing the optic disc?

Cup
Colour
Contour

5

Which structure puts pressure on the optic nerve, causing it to be squashed?

Subarachnoid space

6

What 3 things make up intracranial pressure?

Brain
Blood
CSF

7

What rule is in place with regards to the 3 components of intracranial pressure?

If one of the 3 increases the other two must decrease

8

Why can ICP cause respiratory arrest?

Brain is squeezed through the foramen magnum which causes compression of the brainstem where the medulla and pons are, which control respiration

9

Where is CSF produced?

Lateral ventricles in choroid plexus

10

How is CSF produced?

Choroidal cells secrete CSF

11

Where does the CSF travel to?

3rd and 4th ventricles then to the subarachnoid space

12

What is the function of the CSF?

Shock absorber
pH homeostasis
Exchange place for nutrients and waste products

13

Which cells filter blood to form CSF in the choroid plexus?

Ependydmal cells

14

What is the make up of CSF?

Little protein
Reduced potassium
Increased Na and Cl

15

What connects the third and lateral ventricles?

Intraventricular foramina of Monroe

16

What connects the third and fourth ventricles?

Cerebral aqueduct

17

What is a hydrocephalus?

Too much CSF around the brain.

18

What are the symptoms of papilloedema?

Enlarged blind spot
Blurring of vision

19

Name another cause of raised ICP

Idiopathic intracranial hypertension

20

What basic test can be done in GP if papilloedema spotted?

Blood pressure