A 29 year old woman presents feeling unwell with weakness, headaches and vomiting.

She has photophobia and some minor nuchal irritation.

The patient had seen her GP two days prior and was diagnosed with sinusitis 

A lumbar puncture shows:

Macroscopic: Blood++

Cell count:

WCC 20

PMN 10%

Lymphocytes 90%

RBC 26000

Biochemistry:

Protein 1 g/l

Glucose 2.4 mmol/l

BSL 6.0 mmol/l  (4-6 mmol/l)

Questions:

Describe and interpret three important abnormalities

Give 5 differential diagnosis

Complete the following table

[table id=4 /]