Criteria for VAP:

• Intubated >2 calendar days
• New, worsening or persistent infiltrate, consolidation, or cavitation on chest xray compatible with pneumonia
• Abnormal temperature (<36°C or >38°C) with no other cause, OR abnormal WBC (<4 or >12x10⁹ /mL)
• New onset purulent sputum, or change in character of sputum, or increase in respiratory secretions or increase in suctioning requirements
• Worsening gas exchange (ie. Increasing FiO2, worsening PaO2/FiO2 ratio, increasing minute ventilation)