Read the dialog below. Then answer the question briefly!

Dan: Hello Raj. How's everything?

Raj: Great. And yourself?

Dan: I'm doing well. We have never met for a long time. What do you do?

Raj: I'm a nurse. I work for the biggest hospital in town.

Dan: What are you responsible for?

Raj: I'm responsible for looking after patients, giving them medicine and making sure they're comfortable.

Dan: It sounds exhausting.

Raj: Yeah, But I love it.

What does Raj do for living?