What was she THINKING

One evening I "floated" or was sent to work on another unit...Which I always hate. It's like being the new kid in school...You go to this new floor to help out and no one talks to you and you eat lunch alone. I threaten to quit every time I am floated- I hate it so much. Anyways- I get sent to this fancy cardiac unit two floors down from mine. I mind my own business, conduct my job as if I know what I am doing with a group of patient's that are foreign to me...I haven't seen telemetry or heart problems honestly since nursing school...but you know since I have a fancy RN behind my name- it must mean I am qualified to cover on this unit as a nurse. I am minding my own business and about 3 hours into my shift, I am approached by a nurse who has knowing or unknowingly given me dirty looks since my arrival. She has the audacity to ask if I can hold her phone so she can go on break. It's custom for us to hand off our phones while we go on break and take the other RN's calls as well as our own. "I guess" I say without making contact and kinda shitty; honestly I don't even care about my unprofessional ism. She tells me she only has two patients so it's a good time to eat... She continues... "The patient in this room (points to the room I am sitting next to on the computer charting) is currently having a heart attack, I called the doctor and they are DNR (do not resuscitate). I look at her, finally and only because I can't believe what she is saying then reply... "Are you serious?" to which she replies "As a heart attack" WTF. I am all for on the job humor, I believe that is what keeps us sane...BUT I think the bitch could have picked a better time to eat...And honestly I was like go...I'll take care of your patient because cardiac nurse or not I could do a hell of a better job than you and I prefer to go in there and nurse over you...So there. And I did.