Background: The SARS-CoV-2 infection has triggered a global health crisis. Early detection of COVID-19 infection using hematology and radiology examination is the fastest method to detect the infection. This study aims to evaluate the characteristics of sign and symptom, hematology, and radiology examination of COVID-19 patients at Universitas Gadjah Mada (UGM) Academic Hospital, Yogyakarta, Indonesia.Methods: This is a retrospective study with quantitative descriptive methods and uses a total sampling technique. This study was conducted at UGM Academic Hospital, with a total sample of 147 patients diagnosed with COVID-19. Data were collected from medical records and were analyzed with Microsoft Excel for Windows.Results: This study showed that the most signs and symptoms of COVID-19 patients were cough (46.26%) and cold (37.41%), followed by hypertension (31.97%). Hematology examination showed that the leukocyte count of patients was mainly higher than the normal level (82.99%). The data showed that 22.45% of patients had increased C-Reactive Protein (CRP) and 2.72% of patients had increased procalcitonin. The result of thorax x-ray (16.33%) and CT-scan (28.57%) examination of the COVID-19 patients indicates pneumonia.Conclusions: This study illustrated that the symptoms of COVID-19 patients at UGM Academic Hospital, Yogyakarta were various. Respiratory problems such as cough and cold were the most common symptoms, followed by muscle fatigue and digestive disorders. Hematology and radiology test results of COVID-19 patients depend on the severity of the disease.