(a) Every school board must provide services to promote the health of its pupils.
(b) The board of a district with 1,000 pupils or more in average daily membership in early childhood family education, preschool disabled, elementary, and secondary programs must comply with the requirements of this paragraph. It may use one or a combination of the following methods:
(1) employ personnel, including at least one full-time equivalent licensed school nurse;
(2) contract with a public or private health organization or another public agency for personnel during the regular school year, determined appropriate by the board, who are currently licensed under chapter 148 and who are certified public health nurses; or
(3) enter into another arrangement approved by the commissioner.