Carboxyhemoglobin: Hemodynamic and Respiratory Responses to Small Concentrations

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Science  09 Jul 1965:
Vol. 149, Issue 3680, pp. 193-194
DOI: 10.1126/science.149.3680.193


Hemodynamic and respiratory measurements were made on humans before and after inhalation of sufficient carbon monoxide to raise the carboxyhemoglobin to between 5 and 10 percent of saturation. Arterial and mixed-venous oxygen tensions decreased on average 7.3 and 13.3 percent, respectively. One of five subjects devel oped evidence of mild left-ventricular dysfunction.