I a little concerned after taking my 75 year old mothers blood pressure tonight. It was 106/59. I decided to check it after she had made a few crazy comments. I just wondering if i need to take her to the ER. She has history of stroke and does have a mechanical valve as well is on warfarin. Im leaning towards maybe being a little dehydrated since she never drinks water. Or maybe even a UTI since she has urinated only once today and once yesterday. Any Suggestions???