Agree with Nurse Beth. We usually have DNR and DNI status over here in Canada to clarify the situation. I wonder if you have that as well there? Regardless, families tend to panic at the very last minute. The patient's wishes should be followed - and you can always call on an Ethicist or advocate for the patient's wishes. You will always learn something new with nursing - especially in the ER. Do not feel that lack of knowledge should make you feel uncomfortable. Keep a growth mindset - and you will start seeing learning as a challenge rather than something to shy away form.