CRP and urinary tract infection: At that time, the patient presented chills and dysuria, with marked increase of inflammatory markers (CRP 16.5 mg/dl; procalcitonin 1.46 ng/ml, r.v. < 0.5), probably due to acute urinary tract infection in a catheterized patient, and antibiotic therapy (amoxicillin/clavulanate) was started.