Transcutaneous carbon dioxide (PtCO2) monitoring offers a potential non-invasive and continuous means to determine the arterial carbon dioxide tension (PaCO2). Studies investigating the use of PtCO2 monitoring in the adult emergency department (ED) are limited. To date, the lack of ED studies, especially those looking at clinical outcome and treatment alteration, some technical and cost limitations make it difficult to recommend widespread use of PtCO2 monitoring in the ED. However, there is a potential future use of PtCO2 monitoring in combination with peripheral venous blood gas (pVBG) values in ED patients with acute exacerbations of chronic obstructive pulmonary disease.
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