Table 2. Steady State Blood Gases: Conscious State versus  Administration of Propofol

Data are mean ± SEM.

*P < 0.05 U46619 vs.  baseline.

†P < 0.05 vasodilators vs.  U46619.

‡P < 0.05 propofol vs.  conscious state.

P^O2= oxygen tension; P^CO2= carbon dioxide tension; S^O2= oxyhemoglobin saturation.