Hi runslikeanose,
I contacted the union of my previous employer, who advised me to get an occupational lawyer. They could not represent me since I'm not employed there. As time went on I ended up being served a subpeona, and had to schedule with the attorney representing the patient, but after explaining the case and asking me to recount what I remember, which I honestly could not remember, he dropped the subpeona. He also asked me what the protocol is in the particular case of my involvement. I only answered to the extent I was confident in answering, no details. If I was required to go any further in the process I would have gotten a lawyer. I don't have professional liability insurance.
Hope this helps.