1. Uptake of isoflurane during prolonged clinical anaesthesia
S.K. Pal, G.G. Lockwood, D.C. White 
British Journal of Anaesthesia 
Volume 86, Issue 5, Pages (May 2001)
DOI: /bja/
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

2. Fig 1
The breathing system. There is no conventional fresh gas flow oxygen being drawn up the trunk to replace volume lost from the breathing system from oxygen consumption. The anaesthetist sets the target end-expired isoflurane concentration on the computer, which then controls the rate of the syringe pump to achieve and maintain that value on the basis of measurements made by the gas analyser.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions

3. Fig 2
Left hand scale. Irregular lines: 5th and 95th percentiles of liquid isoflurane required to maintain an end-expired concentration of 1.5%, normalized for each patient to 70 kg. Bold, smooth line: curve of best fit. Right hand scale: number of patients contributing data at each time point.
British Journal of Anaesthesia  , DOI: ( /bja/ )
Copyright © 2001 British Journal of Anaesthesia Terms and Conditions