COVID-19 patient presenting with initial gastrointestinal symptoms

Clinical History: A 56-year-old male patient with end-stage renal disease, heart failure, and tobacco cigarette smoking (5 pack year history) presented to the emergency department with nausea, vomiting, and low-grade fever (37.9°C), and was diagnosed with gastroenteritis. He subsequently developed a dry cough and myalgia, and returned 5 days later with fever (38.1°C). Laboratory studies were remarkable for mild lymphopenia (0.8×103/µL, normal range 0.9×103/µL – 3.3×103/µL), elevated aspartate aminotransferase (71 IU/L, normal range 13 IU/L – 39 IU/L), elevated c-reactive protein (14.6 mg/dL, normal range 0 – 1 mg/dL), and elevated procalcitonin (2.37 ng/mL, normal < 0.1 ng/mL). He had traveled to South Korea approximately 7 weeks prior to presentation.
56 years, male