Table 2.
Results of cerebrospinal fluid investigation of patients with bacterial meningitis
| Cerebrospinal fluid | n | Frequency (%) | Mean (SD) |
Median (IQR) |
|---|---|---|---|---|
| Latex agglutination Positive negative Cell count (cells/mm3) TWBC Polymorph Leucocyte TRBC |
125 88 83 57 73 |
8 (6.4) 117 (93.6) |
990.7 (2344.2) 922.9 (2303.7) 185.1 (618.8) 3857.2 (15348.0) |
125 (772) 100 (823) 34 (82) 150 (1366) |
| Macroscopic appearance | ||||
| Clear | 35 (28.0) | |||
| Blood stain | 25 (20.0) | |||
| Cloudy | 3 (2.4) | |||
| Turbid | 13 (10.4) | |||
| Xanthochromic | 14 (11.2) | |||
| Aetiological agents | ||||
| Coagulase negative staphylococcus | 27 (21.6) | |||
| Acinetobacter species | 22 (17.6) | |||
| Staphylococcus aureus | 17 (13.6) | |||
| Streptococcus species | 14 (11.2) | |||
| Klebsiella pneumonia | 8 (6.4) | |||
| Others# | 37 (29.6) | |||
| Gram Stain | ||||
| Gram negative bacteria | 20 (16.0) | |||
| Gram positive bacteria | 24 (19.2) | |||
| No organism seen | 81 (64.8) | |||
| Positive India ink | 0 (0.0) | |||
| Biochemical test: Globulin | ||||
| Positive | 46 (36.8) | |||
| Negative | 22 (17.6) | |||
| Trace | 3 (2.4) | |||
| Not done | 54 (43.2) | |||
| Protein (g/dL)* [0.15–0.45] | 113 | 47.34 (471.88) | ||
| Glucose (mmol/L)* [2.2–4.4] | 112 | 1.40 (1.20) | ||
| CSF/Plasma glucose ratio* | 48 | 0.29 (0.29) |
*skewed data