Table 1.
Summary of work-up during patient’s hospitalization.
| Lab test (serum) | Lab value | Reference range | Unit |
|---|---|---|---|
| WBC | 3.1 | 3.2–9.8 | 109 cells/L |
| Hemoglobin | 11.7 | 13.7–17.3 | g/dL |
| Platelet | 212 | 150–450 | 109 platelets/L |
| CD4 count | 531 | 400–1400 | Lymphocytes/µL |
| HIV-1 RNA | <20 | <20 | Copies/mL |
| JC Virus | 0 | <500 | Copies/mL |
| TSH | 7.09 | 0.34–5.66 | mIU/mL |
| Free T4 | 0.82 | 0.52–1.21 | ng/dL |
| Vitamin B12 | 692 | 123–730 | pg/mL |
| Folate | 11.3 | >6.5 | ng/mL |
| Coccidioides Ab | Negative | Negative | |
| Parasite screen | Negative | Negative | |
| QuantiFERON Gold | Indeterminate | Negative | |
| Na | 152 | 135–145 | mmol/L |
| K | 4.6 | 3.5–5.0 | mmol/L |
| Cl | 122 | 98–108 | mmol/L |
| HCO3 | 24 | 21–30 | mmol/L |
| BUN | 61 | 7.0–20 | mg/dL |
| Cr | 1.9 | 0.6–1.3 | mg/dL |
| Glucose | 95 | 70–140 | mg/dL |
| Ca | 8.2 | 8.7–10.2 | mg/dL |
| AST | 86 | 15–41 | U/L |
| ALT | 40 | 17–63 | U/L |
| Total bilirubin | 1 | 0.4–1.5 | mg/dL |
| Alkaline phosphatase | 71 | 24–110 | U/L |
| Albumin | 1.9 | 3.5–4.8 | g/dL |
| Total Protein | 5.7 | 5.8–7.8 | g/dL |
| Lab test (CSF) | Lab value | Reference range | Unit |
| Protein | 59 | 15–50 | mg/dL |
| Glucose | 56 | mg/dL | |
| Cell count | 0 | 0–8 | mm3 |
| EBV PCR | Negative | Negative | |
| VDRL | Non-reactive | Non-reactive | |
| Toxoplasma IgG | Non-reactive | Non-reactive | |
| Toxoplasma IgM | Non-reactive | Non-reactive | |
| Fungal culture | Negative | Negative | |
| CMV PCR | Negative | Negative | |
| Cryptococcal antigen | Negative | Negative | |
| HSV PCR | Negative | Negative | |
| Histoplasma antigen | Negative | Negative | |
| CSF culture | Negative | Negative | |
| Parvovirus B19 | Negative | Negative | |
| JC Virus PCR | Negative | Negative | |
| RT-QuIC | Positive | Negative | |
| T-tau protein | 11,406 | 0–1149 | pg/mL |
| 14-3-3 protein | Positive | Negative |
WBC: white blood cells; JC: John Cunningham; TSH: thyroid-stimulating hormone; BUN: blood urea nitrogen; AST: aspartate transaminase; ALT: alanine transaminase; EBV PCR: Epstein–Barr virus polymerase chain reaction; CSF: cerebrospinal fluid; VDRL: venereal disease research laboratory; CMV: cytomegalovirus; HSV: herpes simplex virus; RT-QuIC: real-time quaking-induced conversion.