Five System Barriers to Achieving Ultrasafe Health Care

Figure 1. The size of the box represents the range of risk in which a given barrier is active. Reduction of risk beyond the maximum range of a barrier presupposes crossing this barrier. Shaded boxes represent the 5 system barriers. ASA = American Society of Anesthesiologists.
Figure 1. The size of the box represents the range of risk in which a given barrier is active. Reduction of risk beyond the maximum range of a barrier presupposes crossing this barrier. Shaded boxes represent the 5 system barriers. ASA = American Society of Anesthesiologists. Average rate per exposure of catastrophes and associated deaths in various industries and human activities.

This Article

  1. Ann Intern Med May 3, 2005 vol. 142 no. 9 756-764
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