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 Best of Five 209

 

   

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BOF: 209

A 24-year-old female is admitted with a history of vague headache, lassitude, anorexia and vomiting of a few weeks duration. There is a history of seizures prior to admission. Over the last few months she has been treated for oral thrush on several occasions by her GP. She has been steadily losing weight. On examination she is febrile, drowsy and she has neck stiffness.  CT scan does not show a mass lesion.

Blood:

Urea: 8.2 mmol/L

Sodium 140 mmol/L

Potassium 3.8 mmol/L

Glucose 6.6 mmol/L

CSF:

Red cells 12/ml

White cells 110 /ml (66% lymphocyte, 30 % polymorphs)

Protein1.8g/L

Glucose 2.6 mmol/L

Which organism is the likely cause of this patientís condition?

a)      Neisseria meningitidis

b)      Streptococcus pneumoniae

c)      Staphylococcus aureus

d)      Echo virus

e)      Cryptococcus neoformans

 

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