The three most common (and rational) indications for mechanical ventilation are 1) inadequate oxygenation 2) inadequate ventilation 3) inability to protect the airway. Red Flags for Pending Intubation General Cause for Concern (red flags for pending intubation@): RR > 25/min PCO2 > 50 mm Hg PO2 < 50 mm Hg SpO2 < 90% Always take […]