### Patient: Doctor, I have been experiencing constant pain in my upper right abdomen and sometimes in my back, accompanied by fever and nausea. I also feel very tired and weak. What could be the problem?
### Doctor: Based on your symptoms, you might be suffering from ascending cholangitis. To confirm the diagnosis, we need to run a few medical tests including hematologic tests, a complete blood count (CBC), kidney function tests, an electrolytes panel, and radiographic imaging procedures such as a plain x-ray. We may also need to perform intravenous fluid replacement to help with your symptoms.