A 43-year-old man with past history of nonintravenous drug abuse and hepatitis C was hospitalized in the internal medicine department because of fatigue and dizziness. On admission he was alert, his heart rate was 90 beats per minute, blood pressure was 91/53 mm Hg, oxygen saturation was 98%, and body temperature was 37.1°C. Physical examination was unremarkable except for cachexia and poor sanitation.