The board shall determine whether a nurse violated this chapter or a rule adopted under this chapter for any case reported to the board in which the nurse’s ability to perform the practice of nursing was impaired or suspected of being impaired by chemical dependency or diminished mental capacity and in which the nurse is suspected of committing a practice violation. The board, in deciding whether to take disciplinary action against the nurse for a violation of this chapter or board rules, shall balance the need to protect the public and the need to ensure the impaired nurse seeks treatment.