Usage patterns
〈人〉が看護師になるfor someone to become a nurse
She says she wants to become a nurse in the future.
看護師として働くto work as a nurse
He has worked as a nurse at this hospital for ten years.
看護師の資格を取るto get a nursing license/qualification
To get a nursing license, you need to pass the national exam.
看護師を呼ぶto call a nurse
Since the pain suddenly started, I called a nurse.