A 12-year-old female is admitted with severe pain in her spine. While checking history, the patient and her mother state that several weeks ago the patient was treated for an upper respiratory infection. The infection subsided after several days of taking antibiotics. However, several days later, the child complained of joint swelling and pain in her right elbow, which subsided, but then seemed to migrate to her left knee. A week later, today, the child began to complain of worsening back pain. The mother has been treating the pain with over the counter pain medication and heat and ice packs, but this did not seem to help.
- What are the possible causes of the pain and how you would proceed?