Emergency Department Urinary Tract Infections Caused by Extended-Spectrum β-Lactamase–Producing Enterobacteriaceae: Many Patients Have No Identifiable Risk Factor and Discordant Empiric Therapy Is Common

• Bradley W. FrazeeAlameda Health System
• Tarak K. TrivediUniversity of California, Los Angeles
• Martha E. MontgomeryAlameda Health System
• Danka-Florence PetrovicAlameda Health System
• Reina YamajiUniversity of California, Berkeley
• Lee W. RileyUniversity of California, Berkeley