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Bacteriuria And Pyuria Updated 4/2010

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BASICS

  • Description
  • Epidemiology
  • Risk Factors
  • General Prevention
  • Pathophysiology
  • Associated Conditions

DIAGNOSIS

  • Signs and Symptoms
  • Tests
  • Differential Diagnosis

TREATMENT

  • Medication (Drugs)
  • Complementary and Alternative Medicine

Ongoing Care

  • Prognosis
  • Complications
  • Follow-Up Recommendations
The following is an excerpt....
BASICS
Description
  • Bacteriuria: Presence of bacteria in the urine:
    • Can be either symptomatic or asymptomatic
    • Significant bacteriuria: Quantitative count >1 × 105 CFU/mL in 2 consecutive specimens
    • Majority of individuals with significant bacteria have significant pyuria
    • Usually 1 organism
    • >1 organism: Either contamination or polymicrobial infection
  • Pyuria: Presence of WBC in the urine:
    • Implies an inflammatory response
    • Significant pyuria: >10 WBCs/HPF centrifuged
    • Close association between pyuria and bacteriuria; 96% of patients who are symptomatic and bacteriuric have >10 WBCs/HPF
  • Sterile pyuria: Presence of WBCs in the urine in the absence of bacteriuria:
    • Contamination: Vaginal or prepuce secretions
    • Infections: Treated UTI, mycobacterial, TB, chlamydial, gonococcal, fungal (GU or systemic), viral, haemophilus, bilharzia
    • Other infections: Appendicitis, diverticulitis, prostatitis
    • Noninfectious ...

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See Also
Images >
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FIGURE 63-2Pathogenesis of urinary tract infections. A. Male urinary tract. B. Female urinary tract.Credit: Engleberg NC, Dermody T, DiRita V. Schaecter's Mechanisms of Microbial Disease, 4th Edition. Baltimore: Lippincott Williams & Wilkins, 2007.
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