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Capnograph of this millennium Kodali. Bhavani Shankar MD |
A vision of an ideal capnograph
| A side stream capnograph with the advantages of main stream capnograph seems to be the ideal one |
| Inspiratory and expiratory flow rates should be displayed above the CO2 waveforms to delineate segments and phases of capnogram |
| A capability of plotting a volume capnogram would enable determination of physiological deadspace |
| During steady state, carbon dioxide status is a function of ventilation, and oxygen status is function of inspiratory oxygen concentration. Therefore, the display should reflect this concept. |
| prevention of secretions being drawn into the capnographs would markedly improve the ICU application of capnographs |