I'm feeling much too upset to do the cheerful voice of this blog. One of my cats (Shadow) is dying of kidney failure, and his brother (Plummet) has a 50% chance of having the same genetic disorder. He's being tested tomorrow. I'll edit this with an update, but otherwise I'm calling a short break.
Shadow has polycystic kidney disease. He responded well to his rehydration and antibiotic treatment and is now back home with us. He may last for weeks, or a few months. Plummet also has the disorder, but in his case it is much less advanced. He goes onto a special renal diet, and needs monitoring. His life expectancy is obviously shortened but there's no saying by how much. They are just 7 years old.