• Crit Care Nurs Clin North Am · Sep 2004

    Review Case Reports

    Monitoring carbon dioxide in critical care: the newest vital sign?

    • Tom Ahrens.
    • Barnes-Jewish Hospital, One Barnes-Jewish Hospital Plaza, St. Louis, MO 63110, USA. tsa2109@bjc.org
    • Crit Care Nurs Clin North Am. 2004 Sep 1;16(3):445-51, x.

    AbstractCarbon dioxide (CO(2)) monitoring can yield substantial information about cardiac and pulmonary function. Because capnography is not complicated, it is relatively easy to apply in a wide variety of clinical settings. A new area of CO(2) measurement is sublingual CO(2). Although outcomes data are as yet unavailable for this technology, its ease of use makes it an attractive monitoring tool to assess severity of illness and predict patients' responses to therapy. This article describes the pathophysiology and clinical applications of the technologies and describes why they may well be "the newest vital signs."

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