Figure 5-10 Mistake-Proofing the Design of Health Care Processes - Figure 5.10. Medical gas connection point The holes for the pins are located at 12 o'clock and 5 o'clock. Also, the oxygen outlet is green, and the medical air outlet is yellow.Return to Document Current as of May 2007 Internet Citation: Figure 5-10: 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/mistakefig5-10.html