The middle ear gas composition in air-ventilated dogs.
The middle ear gas composition has been examined in 5 air-ventilated dogs under sodium thiopentone anesthesia. The gas samples were obtained by transtympanic puncture and analysed by gas chromatography. The following mean +/- S.D. gas composition was obtained: N2 83.2 +/- 5.0; O2 12.1 +/- 2.2; and CO2 4.7 +/- 0.7.
D000768:Anesthesia, General; D000818:Animals; D002245:Carbon Dioxide / Q000032:analysis; D002849:Chromatography, Gas; D004285:Dogs; D004432:Ear, Middle / Q000032:analysis*; D005740:Gases / Q000032:analysis*; D009584:Nitrogen / Q000032:analysis; D010100:Oxygen / Q000032:analysis; D012121:Respiration, Artificial
D005740:Gases; D002245:Carbon Dioxide; D009584:Nitrogen; D010100:Oxygen