Problem: Because of a staffing shortage, a nurse is reassigned to a cardiovascular unit for a 4-hour shift. The nurse has never worked on a cardiovascular unit and doesn't feel that he or she can safely care for clients in this unit. Which of the following is the most appropriate initial action for the nurse? Want Professional Help? Report to the unit and discuss the assignment with the charge nurse to identify tasks that the nurse can perform safely. O Report to the unit and do the best he or she can. O Call the nursing supervisor. O Refuse to go to the cardiovascular unit.