Neuro - Lecture

Question 1

Examples of route of entry for CNS infection

Answer 1

Sinuses
Nose
Nerves
Arteries
Venous Sinuses
Trauma 
Iatrogenic

Question 2

What is the normal CSF pressure 1) Lateral Recumbent and 2) Seated

Answer 2

1. 100-200 mmHg

2. 400 mmHg

Question 3

How can you differentiate a traumatic tap from SAH

Answer 3

Xanthochromia (break down of haem, yellow)

Trauma tap = decreased RBC number across tubes collected

Question 4

List complications of bacterial meningitis

Answer 4

1. Waterhouse Friederich Syndrome 
(Acute Adrenal Cortical Insufficiency)
2. Hydrocephalus
3. Secondary Vasculitis
4. Diabetes Insipidus (damage to posterior pit. ADH)
5. Epilepsy 
6. Cranial Nerve Palsy

Question 5

Whats is the normal CSF glucose levels

Answer 5

~2/3 BSL

Question 6

Common bacterial causes of meningitis in a neonate (<2weeks)

Answer 6

1. Group B Steptococcus
2. Listeria
3. E.coli