Indeed, while the anesthesiologist was ultimately at fault, this story made me wonder about the design parameters around the mistake. Are the vials the same col

Indeed, while the anesthesiologist was ultimately at fault, this story made me wonder about the design parameters around the mistake. Are the vials the same color? Do they have the same size and shape? Was this anesthesiologist near the end of a 16-hour shift and had to differentiate two very similar objects? Your comment about the physically compatible, deadly-if-switched connectors was an eye opener: It's almost like if the USB standards group settled on a two-prong design that was physically compatible with a North American 110V AC outlet, and every USB cable shipped with a label saying "DO NOT PLUG INTO WALL OUTLETS".