NOTE: This is distinct from the Meningitest of Dubos et al.
Parameters:
(1) white blood cell count per microliter
(2) CSF leukocyte count per microliter
(3) percent PMNs in the CSF differential count
(4) CSF protein concentration in g/L
(5) ratio of glucose in CSF to blood
ratio of glucose in CSF to blood =
= (CSF glucose in mg/dL) / (blood glucose in mg/dL)
|
Parameter
|
Finding
|
Points for Adult (> 15 yo)
|
|
WBC count
|
<= 15,000 per µL
|
0
|
|
|
> 15,000 per µL
|
3
|
|
CSF WBC count
|
> 1700 per µL
|
4
|
|
|
251 to 1700
|
2
|
|
|
<= 250
|
1
|
|
CSF PMNs
|
> 90%
|
4
|
|
|
81 to 90%
|
2
|
|
|
26 to 80%
|
1
|
|
|
<= 25%
|
0
|
|
CSF protein
|
> 2.3 g/L
|
5
|
|
|
0.81 to 2.3
|
2
|
|
|
<= 0.8
|
0
|
|
CSF/blood glucose ratio
|
<= 0.35 (< 0.33 in abstract)
|
4
|
|
|
> 0.35
|
0
|
total score for an adult =
= SUM(points for all 5 parameters)
|
Parameter
|
Finding
|
Points for Child (> 3 months to 15 yo)
|
|
CSF WBC count
|
>= 1800 per µL
|
2
|
|
|
< 1800
|
0
|
|
CSF PMNs
|
> 80%
|
3
|
|
|
<= 80%
|
0
|
|
CSF protein
|
> 1.2 g/L
|
3
|
|
|
<= 1.2 g/L
|
0
|
|
CSF/blood glucose ratio
|
<= 0.3 (< 0.3 in abstract)
|
3
|
|
|
> 0.3
|
0
|
total score for a child =
= SUM(points for all 4 parameters)
Interpretation:
• minimum score for an adult: 1
• maximum score for an adult: 20
• A score >= 6 for an adult indicates bacterial meningitis.
• minimum score for a child: 0
• maximum score for a child: 11
• A score >= 2 for a child indicates bacterial meningitis.
