The usual time for a flat CT scan of the chest is about one hour, but it depends on the hospital. After getting the CT film, you still need to take the film to the corresponding department doctor to help look at the film, analyze the specific situation and provide symptomatic treatment according to the different causes of the disease. Since hospitals are always crowded places, the process of looking at the films will definitely take some time, but since you go to the hospital to see a doctor, you should not be in a hurry and just wait patiently. But if you are too anxious to know the results of the CT, wait for a while after the CT to find the first doctor to check, because the first doctor’s computer can usually see the results of the film.