he went out and looked around and found where a stash of blood was kept.  He also found an iv to use to place in his sister to get the blood in her.  after about 16 mins of gathering the supplies he needed he came back to her room.  He looked at liz.  "you dont have to watch if will bother you" he says to her and prepares her arm. He ties off above the elbow to look for a vein.