There is no restriction on Jews and non-Jews touching. There is a restriction on touching between the sexes, regardless of faith, where the touching might lead to inappropriate behavior. Different religious communities are strict to different degrees regarding this restriction, with some avoiding particularly affectionate touching, such as hugging or kissing, and others avoiding e.g. even formal handshakes. In non-emergency situations, it is perhaps best to find out from the patient and/or his family what his comfort level is. It is unlikely though that any community restricts non-sexual physical contact in the course of life-saving medical procedures.