Replay - Capnography in the ICU: Usefulness and Application

Capnography, the continuous analysis and recording of the concentration of CO2 in respiratory gas (1), is an integral part of monitoring for a ventilated patient (2). There are two types of capnographs: mainstream and sidestream (2).

In part one, Lluís Blanch M.D., PhD will discuss:

- The concepts and application of capnography for monitoring a ventilated patient

- Capnograph waveforms - CO2 as a function of time and volume, sidestream and mainstream capnography, volumetric capnography and its application in the ICU

- Ventilation and perfusion, measure of dead space and effect of PEEP

References:

1. Richardson M, Moulton K, Rabb D, et al. Capnography for Monitoring End-Tidal CO2 in Hospital and Pre-hospital Settings: A Health Technology Assessment [Internet]. Ottawa (ON): Canadian Agency for Drugs and Technologies in Health; 2016 Mar. (CADTH Health Technology Assessment, No. 142.) 1, Introduction. Available from: https://www.ncbi.nlm.nih.gov/books/NBK362376/

2. D'Mello, J., & Butani, M. (2002). Capnography. Indian journal of anaesthesia, 46(4), 269-278.