What are the two major injuries Tim suffers in this chapter? How are the reactions of the medics different?

Tim is shot twice during the war. THe first time was not so bad. Rat Kiley takes care of him the first time and Tim is shipped away recovering quickly. The second time there is a new midicJorgenson. This time Tim is shot in the butt and Jorgenson is too scared to crawl over to him. O'Brien nearly dies of shock, his wound nearly turns to gangrene.