What is the quickest way to advance in nursing career?

I'm currently an ADN with almost a year of experience. I'm working in an ICU. I don't mind direct patient care, but don't want to be doing it when I get older. I'm thinking about going back to get my masters. But can't decide whether I should go for a nurse practitioner, or just management. Which would be the smartest move. The hospital where I work does tuition reimbursement, so I wouldn't have a huge debt when I'm done. Any thoughts?

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