my mother in law has stage 3 alzheimers ,,shes very hard work at times ,,she had a tough life with a prick off a husband ,,and now this ,we have her up now and again every week but she gets up if shes alone in the room for any short time and walks out the door ,the wife went to make her tea one day and when she returned she was gone .lol your never sure she will go home either so you need to find her and drop her to her house ..the doctors say shes not bad enough to be needing full time care ,so we got to keep a close eye on her