Figure 8-4 Mistake-Proofing the Design of Health Care Processes - Figure 8.4. Software ensures that this automixer optimizes proportions of ingredients for TPN solutionsSource: Example courtesy of an anonymous contributor and participants of a learning session sponsored by Health Insight.Return to Document Current as of May 2007 Internet Citation: Figure 8-4: Mistake-Proofing the Design of Health Care Processes -. May 2007. Agency for Healthcare Research and Quality, Rockville, MD. http://www.ahrq.gov/professionals/quality-patient-safety/patient-safety-resources/resources/mistakeproof/mistakefig8-4.html