Not sure if you are all aware, but if you give mouth to mouth to someone, 99% of the time they will vomit if they begin breathing again . I for one would want to make sure i had gloves on to clear the airway from vomit. Why should that nurse put herself at risk when she is nopt in her work place. If she caught a virus due to not having protection, who is to blame ????
Most airlines ( shorthaul ) only carry the standard 1st aid kit and don't carry defibs, or doctors kits.