Case Presentation: A 73-year-old male with a past medical history of hypertension, benign prostatic hypertrophy, gastroesophageal reflux disorder, latent tuberculosis, and no smoking history presented with 4 days of chills, dyspnea, diarrhea, and dysuria. Initial vital signs were notable for SpO2 88% on room air and HR 110s. Labs were notable for VBG with slight [...]