CCP 340.5’s one-year statute of limitations, not the general two-year limitations period for personal injuries applied to this action by an emergency room patient who was injured when she collapsed on the way back from the bathroom. The emergency room nursing staff made a medical decision that the patient did not need to be accompanied to and from the restroom. While not sophisticated, it was a medical decision in the course of treating the patient. This was not an injury for which the hospital would have liability simply by operating a facility open to the public. The evidence was undisputed that there was nothing wrong with the floor; the patient fell because her leg gave out on her.