In the present study, propofol ampou les used during a working day were analyzed. They all were opened according to safety determinations (Figure 5). Lower volume ampoules, although less common, also can produce vertical projections (Figure 6). Even in view of this fact, leaflets of six commercial representatives of propofol were investigated.
Only in two cases it was possible to detect orientations to open the ampoule. Approximately 6% of anesthesiologists
had hand injuries from opening glass ampoules.