2-19 
 
2.1.4 Acronyms and Abbreviations 
Acronym or Abbreviation  Description 
Auxiliary common gas outlet 
Anesthesia gas scavenging system 
Power of the Alpha waveband/Total power 
Adaptive minute ventilation 
Apnea inspiratory time:expiratory time ratio 
Airway pressure release ventilation 
Power of the Beta waveband/Total power 
Body temperature and pressure, saturated gas 
Continuous positive airway pressure/pressure support ventilation 
Power of the Delta waveband/Total power 
Muscle activity and high frequency artifacts 
EEG anesthesia depth index 
Inspiratory termination level 
Fraction of inspired oxygen 
Inspiratory time:Expiratory time ratio   
Minute volume in percentage