Hi freshgasflow
http://www.abdn.ac.uk/iprc/ants_papers.shtml
and then follow the "ANTS handbook" link -may be quite helpful in describing the different actions involved.
There is also a good review article in the British Journal of Anaesthesia:
Arnstein, F (1997) "Catalogue of human error", British Journal of Anaesthesia, 79, 645-654