My 83 year old mother had quadruple bypass in July of 2006. According to the cardiologist who treated her, she had severe coronary artery disease. At the time of the surgery we were told that this surgery would prolong her life by 5 to 10 years. (It is now 11.5 years- so we feel very blessed) My mother has deteriorated rapidly over the last few months. She is a type 2 diabetic and she also has kidney disease. Her latest lab work indicates that her GFR is 39 and that her pro BNP is 1499 pg/ml- this high result was confirmed with a follow up test (In April of 2017 her GFR was 43 and her pro BNP was 1031 pg/ml) . Based on this information should we be prepared for her to continue to deteriorate rapidly?