Weight loss worry

Minette has lost weight - despite a raging appetite. She has also been a lot more talkative than usual. Her owners are (and Dr Kate) are suspicious that she might have hyperthyroidism. Minette very kindly let us take a sample of blood - you can see the hair under her collar was clipped so we could see her vein.
Minette is about 20 years old and very fit for her age. She is on medication for high blood pressure and has kept her kidney disease at bay with a special diet for over a year. Her owners' vigilance and care should keep her going for a few birthdays yet!