Review Question - QID 102642

A 65-year-old man presents to the emergency department with blood in his vomit. The patient is an immigrant and has no known past medical history. He drinks alcohol regularly, endorses IV drug use, and is currently sexually active with both men and women. His temperature is 99.4°F (37.4°C), blood pressure is 166/104 mmHg, pulse is 82/min, respirations are 22/min, and oxygen saturation is 99% on room air. Physical exam is notable for an obese man with a distended abdomen. A fluid sample is sent from the fluid collection seen in Figure A. During the patient's exam, he begins vomiting bright red blood again. He stops vomiting after receiving omeprazole and ondansetron. Laboratory studies are ordered as seen below.
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