How does the Japanese nurse treat them, and how is this a sharp contrast to Nurse Ratched?

The Japanese nurse treats McMurphy’s and Bromden’s wounds and tells them that not every ward is like Nurse Ratched’s. The nurse claims that Nurse Ratched tries to run it like an Army hospital, and she believes that all single nurses should be fired after they reach thirty-five. The nurse admits that she sometimes wishes she could keep the men there instead of sending them back to Nurse Ratched.