So, Yum had her senior wellness exam Monday. The doctor heard a heart murmur for the first time and her cardiopet probnp is elevated at 112. I guess she will have an echocardiogram and I will obsessively measure her respiratory rate. Any words of wisdom on heart issues? Neko had heart problems, right @Wendy&Neko ? It also looks like she has the beginning of kidney problems. Her BUN was way up at 55, her SDMA was 22, and her urine was a bit dilute at 1.019. Her creatinine was increased but still normal at 2.3. Her phosphorus was out of range at 7.6. Fancy feast classic pates are so high in phosphorus. I was perusing the food charts for low carb/low phosphorus, but my vet suggested phosphorus binders. That way we wouldn't affect her carb balance with a food change. Do any of you use phosphorus binders? All these problems fight each other. Diabetes needs low carb (usually high phosphorus). Kidneys need low phosphorus (usually high carb). Kidneys need lots of fluid. Hearts need not too much fluid. I guess heart disease is the most worrisome at this point. Maybe I will read about it after the echocardiogram. Her blood glucose has crept up a bit lately too. The vet thinks it might be due to a weight increase. I'm increasing her dose in baby steps. Yum is still a very happy active cat. She turned 15 in March.