<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I am feeling very weak and I have high fever. I recently had an infection which was treating using antibiotics, but the fever and weakness did not go away.  <response>: It sounds like you may have sepsis. In order to diagnose this, we need to run a series of medical tests. You will need to undergo hematologic tests, including a complete blood count CBC, and kidney function tests. In addition to this, we may need to perform a radiographic imaging procedure, such as a plain x-ray. Its also important that we replace your fluids using intravenous fluid replacement and conduct a urinalysis to check your kidney function. 