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An introduction to capnography

S G Saisch1

  • 1Department of Thoracic Medicine, King's College School of Medicine and Dentistry, London, U.K.

Biofeedback and Self-Regulation
|June 1, 1994
PubMed
Summary
This summary is machine-generated.

Capnography, using infrared CO2 analyzers, is a valuable tool for respiratory monitoring and control assessment. However, its accuracy in estimating arterial CO2 is limited to healthy individuals under resting conditions.

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Area of Science:

  • Medical Technology
  • Respiratory Physiology

Background:

  • Capnography utilizes modern infrared CO2 analyzers to monitor respiratory function.
  • It has gained clinical acceptance for assessing ventilation and respiratory control.

Purpose of the Study:

  • To provide a practical overview of capnography.
  • To define its clinical uses and limitations.

Main Methods:

  • Review of practical aspects of capnography.
  • Discussion of CO2 analyzer capabilities and limitations.

Main Results:

  • Capnography accurately tracks breath-by-breath CO2 changes.
  • Estimation of mean arterial CO2 tension is limited to normal lungs at rest.
  • Technical issues include condensation, mucus plugging, and faulty connections.

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Conclusions:

  • Capnography is a valuable tool for assessing ventilatory status and respiratory control.
  • Careful equipment selection and setup are crucial to overcome limitations.