Treatment of asymptomatic bacteriuria and candiduria (ASB/C) remains a leading reason for unnecessary antimicrobial use among hospitalized patients, yet the optimal colony-count threshold for identifying and reporting growth from inpatient urine cultures (UCs) is unknown.1-3 Two prior studies suggest that UC growth from hospitalized patients with low colony counts of organisms (104 to 105 CFU [colony-forming units]/mL) was infrequently associated with urinary tract infection (UTI) but generated substantial antimicrobial prescribing for ASB/C.2,3
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Smith M, Puckrin R, Lam PW, Lamb MJ, Simor AE, Leis JA. Association of Increased Colony-Count Threshold for Urinary Pathogens in Hospitalized Patients With Antimicrobial Treatment. JAMA Intern Med. Published online April 29, 2019179(7):990–992. doi:10.1001/jamainternmed.2019.0188
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