Bedside Measurement of Alveolar Carbon Dioxide Tension

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Abstract
ABNORMALITIES of pulmonary excretion of carbon dioxide often become clinically evident only when the patient is no longer able to respond to respiratory stimuli. Recently described syndromes of carbon dioxide retention1 usually remain unrecognized until the underlying pulmonary disease is far advanced. Determinations of alveolar or arterial carbon dioxide tension (pCO2), however, are generally limited to specially equipped laboratories. It is the purpose of this report to describe a simple method for measuring alveolar pCO2 in the hope that it will facilitate wider clinical application of this useful determination.Apparatus§A pulmonary gas sample is collected in . . .