A. Urinary tract infections most commonly occur in older men with prostatic disease, outlet obstruction or urinary tract instrumentation. In men, a urine culture growing more than 1,000 CFU of a pathogen/mL of urine is the best sign of a urinary tract infection, with a sensitivity and specificity of 97 percent. Men with urinary tract infections should receive seven days of antibiotic therapy (trimethoprim-sulfamethoxazole or a fluoroquinolone).
B. Urologic evaluation should be performed routinely in adolescents and men with pyelonephritis or recurrent infections. When bacterial prostatitis is the source of a urinary tract infection, eradication usually requires antibiotic therapy for six to 12 weeks.
References: See page 195.
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