Patient selection: patient who has not been on a ventilator
Criteria for NV-HAP:
(1) worsening oxygenation
(2) new antibiotic therapy >= 3 days
(3) fever (temperature > 38°C) or abnormal white blood cell count (< 4,000 or > 12,000 per µL)
(4) performance of a chest X-ray
Criteria 2, 3 and 4 should occur on the first or second day of worsening oxygenation.
Criteria for worsening oxygenation - at least 2 days of stable or improving oxygenation followed by at least 2 days of one of the following:
(1) decrease in daily minimal oxygen saturation from at least 95% in a patient on ambient air to less than 95% on ambient air)
(2) initiation of supplemental oxygen
(3) escalation of supplemental oxygen
