My husband already wore a Medic Alert necklace because he took a blood thinner. When his dementia worsened, I ordered a new one and added “Impaired Memory” to the engraving.

Yes by all means get a Medic Alert bracelet. They come in all sorts of styles and have a locking clasp so that they cannot be taken off easily. I got my husband on one when he was is an earlier stage and he got used to it in no time. It is worth it for your peace of mind and her safety.