Microstream® capnography applications in the Critical Care Unit include: Verifying and maintaining correct ET tube placement Evaluating CPR compression effectiveness and identifying return of spontaneous circulation Providing continuous EtCO2 monitoring during procedural sedation and analgesia Provide continuous ventilation monitoring in any patient at risk for respiratory depression Ventilation-perfusion status: tracking changes in a-ADCO2 to assess treatment and to gauge severity of disease Assessing ventilatory status during ventilator weaning and post-extubation Identifying neuromuscular blockage reversal Identifying end-expiration on hemodynamic waveform Monitoring head trauma patients Evaluating severity of acute respiratory diseases Evaluating severity of acute respiratory disease and assisting in treatment decisions