[Detective efficacy of abnormality during mechanical ventilation].
The sensitivity of expired oxygen concentration (FeO2), oxygen concentration difference between inspiration and expiration (FiO2-FeO2), end-tidal CO2 (ETCO2) and pulse oxymetry (SpO2) in monitoring of several abnormal states during mechanical ventilation were compared in 10 patients. FiO2-FeO2 and FeO2 were found as sensitive as ETCO2 in monitoring hypoventilation. Oxygen analyzer located at the expiratory limb provided more information than at the inspiratory one. SpO2 was a rather insensitive detector for hypoventilation or even interruption of ventilation if FiO2 values was higher than that in ambient air. ETCO2 was a valuable estimate of adequate ventilation and CO2 elimination.
Mi
W D
WD
General Hospital of People's Liberation Army, Beijing.
Jin
B
B
D000328:Adult; D000768:Anesthesia, General; D000771:Anesthesia, Intravenous; D005260:Female; D006801:Humans; D007040:Hypoventilation / Q000209:etiology; D008297:Male; D008875:Middle Aged; D008991:Monitoring, Physiologic; D010100:Oxygen / Q000378:metabolism; D012121:Respiration, Artificial / Q000009:adverse effects
D010100:Oxygen