Patient selection: trauma patient receiving ventilator support
Criteria - both of the following:
(1) 2 or more findings from Group A
(2) 2 or more findings from Group B
Group A:
(1) pulmonary infiltrate on chest imaging study
(2) PaO2 to FIO2 ratio < 300 mm Hg
(3) purulent secretions from endotracheal aspirate
Group B:
(1) core body temperature <= 36°C or >= 38.3°C
(2) WBC < 5,000 per µL or > 10,000 per µL or >= 10% bands in the peripheral blood differential
(3) heart rate > 90 beats per minute
(4) respiratory rate > 20 breaths per minute OR PaCO2 < 32 mm Hg (hyperventilation)
(5) unexplained mean arterial pressure (MAP) < 70 mm Hg
(6) unexplained change in mental status
(7) unexplained ileus
