RT Book, Section A1 McIntosh, Ann T. A2 Cline, David M. A2 Ma, O. John A2 Cydulka, Rita K. A2 Meckler, Garth D. A2 Handel, Daniel A. A2 Thomas, Stephen H. SR Print(0) ID 56273344 T1 Chapter 53. Urinary Tract Infections and Hematuria T2 Tintinalli's Emergency Medicine Manual, 7e YR 2012 FD 2012 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-178184-8 LK accessemergencymedicine.mhmedical.com/content.aspx?aid=56273344 RD 2024/10/15 AB Urinary tract infections (UTIs) account for up to 3% of emergency department visits. Urethritis and cystitis are infections of the lower urinary tract. Pyelonephritis is an infection of the upper urinary tract. Up to 80% of UTIs are caused by Escherichia coli. The rest are caused by Staphylococcus saprophyticus, Klebsiella, Proteus, Enterobacter, Pseudomonas, and Chlamydia trachomatis.