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Evaluation of Bacteriuria Treatment and Follow-up Initiated in the Emergency Department at a Veterans Affairs Hospital

Background: This study aims to evaluate the treatment and follow-up of bacteriuria in the emergency department (ED). Objective: The primary objective was to determine the frequency of patients discharged from the ED with antibiotics for symptomatic and asymptomatic bacteriuria, and the secondary objectives were to determine the frequency of patients receiving postdischarge antibiotic interventions and antibiotic-related adverse drug reactions (ADRs). Methods: This retrospective study evaluated patients with ED urine cultures sent between October 1, 2015, and November 24, 2015. Patients with indwelling catheters, concurrent antibiotics, and admission for inpatient care were excluded. T tests and contingency tables were applied in SAS; P < .05 was considered significant. Results: Of 429 unique patients with urine cultures drawn in the ED, 13.1% (n = 56) received treatment for a bacteriuria. The majority of patients discharged from the ED with antibiotics had urinary tract infection (UTI) symptoms documented in the medical record (76.8%; n = 43). Of those patients who required postdischarge interventions, 4 out of 13 had appropriate antibiotic adjustments based on culture and sensitivity results at follow-up. In a subset of patients with inappropriately ordered urine cultures (no UTI symptoms documented or antibiotic prescribed), a higher percentage of patients had normal urinalyses (UA) compared to abnormal UAs (83.3% vs 10.4%, P = .0008). No significant ADRs were identified. Conclusions: The majority of patients treated for bacteriuria in the ED had documented symptoms consistent with UTIs and appropriate empiric antibiotics. However, incorporating antimicrobial stewardship activities in the ED targeting unnecessary urine cultures and assuring postdischarge follow-up if treatment modification is needed based on culture results can improve antibiotic prescribing.