Do i take the interview?

I was offered an interview yesterday for a job on a mental health ward.. I wasn't even expecting to get an interview.

Anyway, I already work on a surgical ward at the hospital and I thought maybe I'll see where this takes me.

But now I really don't know whether I should take the interview or not..

Its part time, same money I'm on now. I can stay where I am as well, on bank.

I know what I'm doing when it comes to mental health etc..

What do I do.. Should I accept the interview and see where it goes

Or leave it.. 😳