In general, Salt dehydrates people very quickly. If an elderly lady who is not replenishing herself regulary i.e drinking plenty of fluids to flush out her renal system, then the salt that builds up will cause renal failure. I agree that this does seem like abuse.I work in a care home and i see doctors coming in and out everyday. I have regretably found that doctors seem to have no time or patience with the elderly and feel that they are wasting time and resources when attending to them.This is a sad case that shockingly seems to be happening everywhere and it should be stopped!! I feel that doctors who show little time and respect for the elderly is abuse in itself.