Everyone dies, eventually
The hardest question to answer. When it's a child asking, I never tell them yes, I alway am honest when something is going to hurt and explain everything we do and why, and sometimes let them help (obviously not critical) like hold this ice pack for me here...
Adults and their family... each case is different. If the patient asks, and they are usually the older one's humor is the best bet, yes, not today though, we only take dying people on Tuesdays, or something like that. Now if the patient tells you they are going to die, they usually do. I had a lady screaming at me, 3 stories up I'm dyinig, can't you hurry. She yelled at me for 5 minutes while I tried to get history, meds, allergies, crank her o2 to 6 lpm (her max) and calm her down. We got her on the stairchair and started down the 3 stories of deck stairs, all 90 degree turns, 1/3 of the way down, she leans forward. I look at my partner so he can brace to stop, I hold on to her shoulders and while I'm leaning her back telling her how important that was-she coded!
The ones who are not falling to pieces to the point you can't understand what they are saying, "Everything that can be done is being done for them....is there anyone I can call for you or you would like to call?"
If they can handle it, be honest explain what is being done for them so they can understand. The hardest thing to do is give a parent's child's clothes back to the family and say, I'm sorry, we did all we could. After every child I have had to code, which has been too many, I pray as I'm working them that whatever is to be, happens, and ask God to bless them. I walk out the door, and the day goes on.