Nosocomial Infections

Nosocomial Infections

1. 40% - Urinary Tract Infections

   • Criteria: Positive urine culture (1/2 species) with at least 10^5 MO/ml, w/wout clinical symptoms
   • 80% of infections associated with use of bladder catheter
   • Escherichia coli / Klebsiella

2. 20% - Surgical Site Infection

   • Criteria: Purulent discharge, abscess, or spreading cellulitis at the surgical site during the month after surgery.
   • Risk factors: Contamination during surgery dependent on length and patient's general health, presence of foreign bodies including drains, virulence of MO's, experience of surgical team
   • Variable MO's

3. 15% - Lower Respiratory Tract Infections

   • Criteria: Resp symptoms + at least two of : cough, purulent sputum, new infiltrate on chest radiograph consistent with infection, appearing during hospitalization
   • Pneumonia
     • Patients on ventilators in ICU is 3% per day.

4. 6% - Bacteremia from IV Catheterization

   • Criteria: Inflammation, lymphangitis or purulent discharge at the insertion site of the catheter.