Although Chicago has a big lake and an active local diving community, I wonder if local ambulance drivers and emergency departments are familiar with decompression sickness, emergency procedures, and the available chambers?
My husband and I once visited the ED at a small hospital in Florida because he had unexplained joint pain after diving - it wasn't DCS - but we got the impression that the ED staff were very knowledgeable about diving-related and water-related injuries and were equipped to handle them. I am not sure that would be true in the middle of the country.
I’m not sure. Lutheran General is the ONLY chamber in the Chicago area that will take emergencies of any kind, we were told when I did my chamber dive. So given the amount of diving I do, if anything happens, I will be sure to tell them where the closest chamber is.