Pneumonia, as the name suggests, is inflammation of the lungs and belongs to the category of respiratory diseases. Therefore, the primary department to consult is Respiratory Medicine. In places where there is no Respiratory Medicine department, such as community health service centers or township health clinics, patients would have to consult the general internal medicine department instead. Of course, if the symptoms of pneumonia are severe and the condition is critical, and it happens outside of regular outpatient hours, then the patient must be seen by the emergency medicine department. The emergency medicine department will manage and triage pneumonia patients, and then decide their next steps, such as whether to transfer them to the ICU, a regular Respiratory Medicine department, or keep them for observation in the emergency department.