Table 3.
| Symptoms |
| Fatigue |
| Anorexia, Weight Loss |
| Headache |
| Flank pain |
| Arthralgias |
| Myalgias |
| Signs |
| Fever |
| Skin rash |
| Costovertebral Angle tenderness |
| Laboratory Findings |
| Blood studies: Renal Failure, Anemia, Eosinophilia |
| Urine studies: Sterile Pyuria, Proteinuria, Eosinophiluria, White Blood Cell Casts, Micro/Macroscopic Hematuria (rare) |