Urinary Tract Infection : Diagnostic Studies

  • Diagnostic Studies
    • History and physical examination
    • Dipstick urinalysis
      • Identify presence of nitrites, WBCs, and leukocyte esterase
    • Urine culture
      • Urine for culture and sensitivity (if indicated)
        • Clean-catch sample preferred
        • Specimen by catheterization or suprapubic needle aspiration more accurate
        • Determine bacteria susceptibility to antibiotics
    • Imaging studies
      • Ultrasound
      • CT scan (CT urogram)
  • Drug Therapy
    • Antibiotics
      • Selected on empiric therapy or results of sensitivity testing
      • Uncomplicated cystitis
        • Short-term course (typically 3 days)
      • Complicated UTIs
        • Long-term treatment (7 to 14 days or more)
      • Trimethoprim/sulfamethoxazole
      • Used to treat uncomplicated or initial UTI
        • Inexpensive
        • Taken twice a day
      • Nitrofurantoin (Macrodantin)
        • Given three or four times a day
        • Long-acting preparation (Macrobid) is taken twice daily
      • Ampicillin, amoxicillin, cephalosporins
        • Treat uncomplicated UTI
      • Fluoroquinolones
        • Treat complicated UTIs
        • Example: ciprofloxacin (Cipro)
    • Antifungals
      • Amphotericin or fluconazole
        • UTIs secondary to fungi
    • Urinary analgesic
      • Phenazopyridine
        • Used in combination with antibiotics
        • Provides soothing effect on urinary tract mucosa
        • Stains urine reddish orange
          • Can be mistaken for blood and may stain underclothing

Share:

More Posts

Managing Asthma in Schools

For Everyone AT A GLANCE Asthma is a leading chronic illness among children and adolescents in the United States. It is one of the leading

All About High Blood Pressure

For Everyone KEY POINTS High blood pressure (hypertension) is consistently at or above 130/80 mm Hg. High blood pressure typically has no signs or symptoms

Flu and People with Diabetes

r Everyone MAR. 20, 2024 PREVENTION AND CONTROL OF SEASONAL INFLUENZA WITH VACCINES: RECOMMENDATIONS OF THE ADVISORY COMMITTEE ON IMMUNIZATION PRACTICES — UNITED STATES, 2025-2026