Urinary Tract Infection (UTI)

Salman Atshan, Phd

Medical Microbiology

University College for Humanities/2014

Epidemiology

Risk factors for UTIGenderAnatomic factorsPhysical factors Metabolic factorsHospitalization

Etiology

Common etiology agents Hospitalized etiology Infrequent etiology agents

Clinical manifestations:

-Lower urinary tract infectionsUrethritis

Cystitis

Prostatitis

-Upper urinary tract Infections:Pyelonephritis

Diagnosis of UTI

Physical Exam: CVA tenderness (pyelonephritis) Urethral discharge (urethritis) Tender prostate on DRE (prostatitis)

Labs: Urinalysis, Urine culture

Urinalysis- + leukocyte esterase + nitrites

More likely gram-negative rods + WBCs + RBCs

Diagnosis of UTI

Diagnosis of UTI

Culture - Positive Urine Culture = >105 CFU/mL

Treatment

Trimethroprim/Sulfamethoxazole for 3 daysMay use fluoroquinolone (ciprofoxacin or

levofloxacin) in patient with sulfa allergy, areas with high rates of bactrim-resistance.