LAUSR

CASE REPORT A 59-year-old Hispanic male with a history of hypertension and alcohol use disorder presented to the emergency department with complaints of cough and progressive shortness of breath. On examination, the patient was noted to be hypoxic to 86% on room air, but otherwise the initial physical examination was unremarkable. The patient was a nonsmoker and non-drug user and consumed alcohol daily. He was unemployed and lived in a shelter. He was allergic to penicillin, which caused him hives. He was not taking any prescribed over-the-counter medications or supplements. His initial laboratory tests showed normal complete white blood cell count of 6.1 K/uL; normal liver and kidney function tests; D-dimer, 212 ng/mL; lactate dehydrogenase, 323 U/L; ferritin, 340 ng/mL; and C-reactive protein, 6.9 mg/L. A computed axial tomography scan of the chest without contrast showed bilateral groundglass opacities, potentially indicative of COVID-19 infection. After the initial physical examination and laboratory and imaging findings, the patient was admitted to the medical ward for suspected COVID-19 pneumonia. Two nasopharyngeal swabs