Noninvasive monitoring of oxygen and carbon dioxide

Am J Emerg Med. 2001 Mar;19(2):141-6. doi: 10.1053/ajem.2001.21353.


Pulse oximetry and capnography are widely used in clinical practice. They provide quick and noninvasive methods to estimate arterial oxygen saturation and carbon dioxide tension in different situations including emergency departments, intensive care units, and during procedures. This article reviews the principles of surgery, accuracy, limitations, and clinical applications of these instruments.

Publication types

  • Review

MeSH terms

  • Capnography / instrumentation
  • Capnography / methods*
  • Critical Care
  • Humans
  • Monitoring, Intraoperative
  • Oximetry / instrumentation
  • Oximetry / methods*
  • Reproducibility of Results
  • Sensitivity and Specificity