Laboratory findings of the patient presented.
| Variables | Results |
|---|---|
| CSF chemistry | |
| Glucose | 4.4 |
| Protein | 0.5 g/L |
| WBC | 0 cells |
| RBC | 30 |
| Blood cultures | Negative |
| Cryptococcus antigen | Negative |
| Asperigillous galactomannan antigen | Negative |
| Mycoplasm IgM | Negative |
| Herpes simplex virus PCR | Negative |
| HIV | Negative |
| Autoimmune markers | |
| ESR | 3 |
| Complement 3 level | 137 |
| ANA | Negative |
| Anti ds DNA | Negative |
| Jo 1 antibody | Negative |
| Tuberculosis investigations | |
| Acid fast bacilli culture | Negative |
| Acid fast bacilli PCR | Negative |
| Quantiferon | Negative |
| CSF cultures & gram stain | Negative |
| Pneumocystitis pneumonia | Negative |
| Toxoplasma IgG | Negative |
| Brucella serology | Negative |
| Hepatitis B & C | Non reactive |
| CRP | 2.6 |
| Complement 4 level | 45 |
| ANCA | Negative |
| SS-A and SS-B antibodies | Negative |
| Cryoglobulin | Negative |
CSF - cerebrospinal fluid, WBC - white blood cells, RBC - red blood cells, PCR - polymerase chain reaction, ESR - erythrocyte sedimentation rate, ANA - antinuclear antibody, CRP - C reactive protein, ANCA - antineutrophil cytoplasmic antibodies