Meningitis: Difference between revisions
From IDWiki
(Created page with "== Background == * Inflammation or infection of the meninges and subarachnoid spact * May be acute, subacute, or chronic * May be caused by Bacterial...") Â |
(→â€)  |
||
| (2 intermediate revisions by the same user not shown) | |||
| Line 1: | Line 1: | ||
== |
==Background== |
||
* |
*Inflammation or infection of the meninges and subarachnoid spact |
||
* |
*May be acute, subacute, or [[Chronic meningitis|chronic]] (≥4 weeks) |
||
* |
*May be caused by [[Bacterial meningitis|bacteria]], [[Viral meningitis|viruses]], [[Fungal meningitis|fungi]], [[Parasitic meningitis|parasites]], or [[Aseptic meningitis|non-infectious causes]] |
||
== |
==Diagnosis== |
||
* |
*Typically confirmed by lumbar puncture demonstrating pleocytosis, with or without MRI brain |
||
{| class="wikitable" |
{| class="wikitable" |
||
!Parameter |
!Parameter |
||
!Normal |
!Normal |
||
!Bacterial |
![[Bacterial meningitis|Bacterial]] |
||
!Viral |
![[Viral meningitis|Viral]] |
||
!Tuberculous |
![[Tuberculous meningitis|Tuberculous]] |
||
!Fungal |
![[Fungal meningitis|Fungal]] |
||
|- |
|- |
||
|Opening pressure |
|Opening pressure |
||
|12 |
|12 to 20 cmH<sub>2</sub>O |
||
|raised |
|raised |
||
|normal or raised |
|normal or raised |
||
| Line 47: | Line 47: | ||
|Protein |
|Protein |
||
|0.4 g/L |
|0.4 g/L |
||
|high |
|||
|raised |
|||
|somewhat high |
|||
|slightly raised |
|||
|very high |
|||
|markedly raised |
|||
|high |
|||
|raised |
|||
|- |
|- |
||
|Glucose |
|Glucose |
||
Latest revision as of 21:10, 12 August 2020
Background
- Inflammation or infection of the meninges and subarachnoid spact
- May be acute, subacute, or chronic (≥4 weeks)
- May be caused by bacteria, viruses, fungi, parasites, or non-infectious causes
Diagnosis
- Typically confirmed by lumbar puncture demonstrating pleocytosis, with or without MRI brain
| Parameter | Normal | Bacterial | Viral | Tuberculous | Fungal |
|---|---|---|---|---|---|
| Opening pressure | 12 to 20 cmH2O | raised | normal or raised | raised | raised |
| Appearance | clear | cloudy | clear | clear or cloudy | clear or cloudy |
| WBC count | <5 | >100 | 5 to 100 | 5 to 500 | 5 to 500 |
| Differential | PMN | lymphocyte | lymphocyte | lymphocyte | |
| Protein | 0.4 g/L | high | somewhat high | very high | high |
| Glucose | >2/3 of plasma | very low | normal to low | very low | low |
