My mother has had diagnosed osteoporisis for a number of years, as did her mother. She has been on alendronate probably longer than she should. She is going into end-stage dementia and her mobility has really declined in the last few months; she's using a walker now but will probably be in a wheelchair soon. Her doctor has scheduled her for a bone density scan. My question is, what good might be achieved at this point? Has anyone else dealt with this one? I've already had to say no last year to a cardiologist who wanted her to do a stress test for a minor heart arrhythmia.