• . A patient has a DNR prominently displayed in their medical chart while they are in the hospital; a nurse sees the patient choke on an olive that becomes stuck; what should the nurse do?

• . A teen-age girl has been diagnosed with terminal cancer and has been given only weeks or months to live; her parents feel guilty and want everything done; the oncologist has told the health care team that chemo-therapy will not help the girl and will, instead, wreck her immune system and cause her pain; the girl, legally a minor, cannot make a treatment decision that differs from her parents' decision; she calls you to her bedside and begs the nurse to arrange for her to go home and says she doesn't want any more therapy; what is most appropriate for the nurse to do and why?

• . The surgeon talks to a patient prior to a surgical procedure and stops by the nurses station to ask the nurse to get the consent form signed; you go into the patient's room and see the patient getting out of bed and he says, "I've changed my mind. I'm getting out of here!" What is the most appropriate action for the nurse to take and why?