1. The Use of Volumetric Capnography in Optimizing Mechanical Ventilation Donna Hamel, RRT, RCP, FAARC Pediatric Critical Care Medicine Duke Children’s Hospital Durham, N.C.

7. SBCO 2 Waveform Expired CO 2 V T

8. SBCO 2 Waveform Expired CO 2 I V T Phase I = large airway ventilation

9. SBCO 2 Waveform Expired CO 2 I II V T Phase II = mixed large airway and alveolar ventilation Phase I = large airway ventilation

10. SBCO 2 Waveform Expired CO 2 I II V T Phase II = mixed large airway and alveolar ventilation Phase I = large airway ventilation III Phase III = exhaled volume of alveolar gas

21. ↑ Phase 1

24.  Phase 2 Decreased Perfusion Baseline

27. ↑ Phase 3 CO 2 Exhaled Volume increased phase 3

33. Thank You!