| Presentation: | Altered mental status |
| Supportive testing: | MRI: Normal; |
| EEG: Abnormal (slowing); | |
| CSF: Normal; | |
| CSF: SARS-CoV-2 negative | |
| Treatment: | Supportive; treat underlying COVID-19 |
CSF = cerebrospinal fluid; EEG = electroencephalogram; MRI = magnetic resonance imaging