Physics of capnography

 

 

Physical Methods of Carbon dioxide Measurement

  1. Infra Red Spectrography
  2. Molecular Correlation Spectrography (Microstream technology)
  3. Mass Spectrography
  4. Raman Spectrography
  5. Photoacoustic Spectrography

 

Factors Affecting IR Spectrography

  1. Atmospheric Pressure
  2. Nitrous Oxide
  3. Oxygen
  4. Water Vapor
  5. Inhalational Agents
  6. Response Time

 

Chemical Method of Carbon dioxide Measurement


Types of Capnographs

  1. Main-stream Capnographs
  2. Side-stream Capnographs


Recent advances in technology

  1. Microstream technology for side-stream sensors
  2. Main-stream sensors