Abstract
Continuous monitoring of inspiratory oxygen can be accomplished by placing an electrochemical cell into the inspiratory limb of the anaesthesia circuit, or by analyzing gas sampled from the Y-piece. Polarographic cells in the two sites and a side-stream paramagnetic oxygen analyzer were compared in a clinical experiment. The times to low oxygen alarm were comparable when measured from the cell in the inspiratory limb and the paramagnetic method. Breath-by-breath monitoring of end-tidal oxygen concentrations offered patient information rather than mere inspiratory oxygen levels. The inspiratory-expiratory oxygen difference seems a more sensitive indicator or hypoventilation than end-tidal carbon dioxide. Awareness of the alveolar (end-tidal) oxygen level shorten alert and alarm times and, invariably, increases patient safety.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
American Society of Anesthesiologists. Standards for intraoperative monitoring. ASA Newsletter 1986;50:9.
Eidhorn JH, Cooper JB, Cullen DJ, Maier WR, Philip JH, Seeman RG: Standards of patient monitoring during anesthesia at Harvard Medical School. JAMA 1986;256:1017–1020.
Recommendations for standards of monitoring during anaesthesia and recovery. The Association of Anaesthetists of Great Britain and Ireland, London, 1988.
Cass NM, Crosby WM, Holland RB: Minimal monitoring standards. Anesth Int Care 1988;16:110–113.
Tremper KK, Barker SJ: Monitoring of oxygen. In: C.L. Lake (Ed.), Clinical Monitoring, Philadelphia, W.B. Saunders Company, 1990, pp.283–313.
Gravenstein JS, Paulus DA: Clinical Monitoring Practice, Chapter 6: Monitoring ventilation and gases, 2nd Edition. Philadelphia, J.B. Lippincott Company, 1987, pp. 157–199.
Meril Ñ inen PT: Sensors for O2 analysis: Paramagnetic, electrochemical, Polarographie and zirconium-oxide technology. Biomed Instrument Technol 1989;23:462–466.
Meril Ñ inen PT: A fast differential paramagnetic oxygen sensor. J Clin Monit Comp 1988;5:187–195.
Meril Ñinen PT: A differential paramagnetic sensor for breath-by-breath oximetry. J Clin Monit 1990;6:65–73.
Nikki P, Bahr M, Paloheimo MPJ: Comparison of non-invasive respiratory and arterial blood gas analysis. A recovery room study on acute respiratory depression. Scand J Clin Lab Invest 1990;50(Suppl.203):213–216.
Paloheimo MPJ: Clinical aspects of anesthesia gas monitoring. In: J Hedley- Whyte and PW Thompson (Eds.), Continuous Anesthesia Gas Monitoring, ASTM STP 1090, Philadelphia, American Society for Testing and Materials, 1990, pp. 20–25.
Linko K, Paloheimo M: Inspiratory end-tidal oxygen content difference: A sensitive indicator of hypoventilation. Crit Care Med 1989;17:345–348.
Linko K, Paloheimo M: Monitoring of the inspired and end-tidal oxygen, carbon dioxide, and nitrous oxide concentrations: Clinical applications during anesthesia and recovery. J Clin Monit 1989;5:149–156
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1992 Springer-Verlag Tokyo
About this paper
Cite this paper
Paloheimo, M. (1992). Oxygen Monitoring in Respiratory Gas. In: Ikeda, K., Doi, M., Kazama, T., Sato, K., Oyama, T. (eds) Computing and Monitoring in Anesthesia and Intensive Care. Springer, Tokyo. https://doi.org/10.1007/978-4-431-68201-1_2
Download citation
DOI: https://doi.org/10.1007/978-4-431-68201-1_2
Publisher Name: Springer, Tokyo
Print ISBN: 978-4-431-68203-5
Online ISBN: 978-4-431-68201-1
eBook Packages: Springer Book Archive