Table 4

Diagnostic criteria for ventilator-associated pneumonia in order of occurrence

Diagnostic criteria
n (%)

Leukocytosis
26 (68.4%)
Fever
24 (63.1%)
Purulent tracheal secretion
22 (57.8%)
Decrease of at least 10% in PaO2/FiO2 ratio
16 (42.1%)
Rales or dullness to percussion on chest examination
9 (23.6%)
Leucopenia
4 (10.5%)
Blood positive cultures
4 (10.5%)
Hypothermia
2 (5.2%)

FiO2, fractional inspired oxygen; PaO2, arterial oxygen tension.

Camargo et al. Critical Care 2004 8:R422   doi:10.1186/cc2965