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Medicine -CNS > CSF Changes > Flashcards

CSF Changes Flashcards

1
Q

Normal CSF appearance?

A

Crystal clear

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2
Q

Normal lymphocytes in CSF?

A

<5/mm3

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3
Q

Normal Neutrophil count in CSF?

A

NO neutrophils

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4
Q

Normal protein in CSF?

A

0.2-0.4 g/L

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5
Q

Normal glucose level in CSF to Serum?

A

2/3-1/2 blood glucose😁

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6
Q

Viral menigitis?

CSF appearance

A

Clear/ Turbid

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7
Q

Viral meningitis

Lymphocytes

A

10-100/mm3

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8
Q

Viral meningitis

Neutrophils?

A

Nil

But can be present in early stages

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9
Q

Viral meningitis protein level?

A

0.4-0.8g/L

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10
Q

Viral meningitis

Glucose level

A

> 1/2 of blood glucose

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11
Q

Pyogenic meningitis

Appearance

A

Turbid/ Purulent

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12
Q

Pyogenic meningitis

Lymphocytes

A

<50mm3

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13
Q

Pyogenic meningitis

Neutrophils

A

200-300/mm3

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14
Q

Pyogenic meningitis

Protein

A

0,5-2.0g/L

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15
Q

Pyogenic meningitis

Glucose

A

<1/2 blood glucose

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16
Q

Tuberculous meningitis

Appearance

A

Turbid/viscous

17
Q

Tuberculous meningitis

Lymphocytes

A

100-300/mm3

18
Q

Tuberculous meningitis

Neutrophils

A

0-200/mm3

19
Q

Tuberculous meningitis

Protein

A

0.5-3.0g/L

20
Q

Tuberculous meningitis

Glucose

A

<1/2 blood glucose

21
Q

What is csf pleocytosis?

A

Raised CSF cell count without an evident infecting organism

Usually a mixture of lymphocytes and neutrophils

22
Q

What are the causes of sterile CSF pleocytosis

A

Partially treated bacterial meningitis

Viral meningitis

Tb and fungal meningitis

Intracranial abscess

Neoplastic meningitis

Parameningeal foci- paranasalsinuses

Syphilis

Cerebral venous thrombosis

Cerebral malaria

Cerebral infarction

Following SAH

Encephalitis including HIV

Rarities - cerebral malaria, sarcoidosis, lyme dosease, endocarditis, cerebral vasculitis

23
Q

Malaria CSF findings

A

Increased protein
Reduced glucose
CSF pleocytosis
Generally normal

24
Q

Fungal meningitis

A

Clear CSF
<500- monocytes
>200 -protein
NL or low- sugar

Medicine -CNS (5 decks)

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