The nurse manager learns that one of the staff nurses on the unit has a substance addiction and is arriving at work under the influence of the substance. Using Watson's theory, how should the nurse manager deal with this staff member?

Confront the nurse privately, order drug testing, and suggest a substance-abuse program.

Send the nurse home with instructions not to return until clear of the substance.

Notify the board of nursing and fire the nurse immediately.

Call the police and have the nurse arrested for working while impaired.