Urinary Tract Infections

Walter C Hellinger

in Mayo Clinic Infectious Diseases Board Review

Published on behalf of © Mayo Foundation for Medical Education and Research

Published in print January 2012 | ISBN: 9780199827626
Published online June 2012 | e-ISBN: 9780199929641 | DOI:

Series: Mayo Clinic Scientific Press

Urinary Tract Infections

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There are several terms important to a discussion of urinary tract infection (UTI). Bacteriuria is bacteria in the urine. Significant bacteriuria is at least 105 bacteria/mL of voided urine. Asymptomatic bacteriuria is bacteria in the urine without symptoms associated with urinary tract infection. Urinary tract infection is bacteriuria (or funguria) and symptoms associated with upper UTI or lower UTI (or both). UTI s are sometimes characterized as asymptomatic or symptomatic, in which case asymptomatic UTI is synonymous with asymptomatic significant bacteriuria. Uncomplicated UTI is infection of a physiologically and anatomically normal urinary tract. Complicated UTI is infection of a physiologically or anatomically abnormal urinary tract. Cystitis is lower UTI typically associated with urinary frequency, dysuria, or urgency. Acute pyelonephritis is upper UTI of recent onset with renal involvement, often associated with fever, chills, flank pain, or nausea. Diagnosis and treatment of specific infections are also reviewed.

Chapter.  3436 words. 

Subjects: Infectious Diseases

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