[Answered]: A 68 year old male has had flu-like symptoms with…

A 68 year old male has had flu-like symptoms with nausea and vomiting for the past week. He tells you he has lost weight, has no appetite and complains of swelling in his lower extremities. He tells you he urinates infrequently. His vital signs are P 98, R 22, BP 94/68, and SpO2 is 96% on room air. You should suspect viral infection. acute renal failure. liver failure. pancreatitis.