I recently had Django in for a check-up. He still appears to be in fighting form, although he is nine as of January. I have looked at the blood values for greyhounds posted at Greyt Health, but can't find mention of normal mcv and mch; his values are 74.0 (mcv) and 26.1 (mch). His total T4 has dropped from 10.04 to 6.95. My vet isn't concerned, but I'm considering changing insurance companies so I don't want any surprises down the road. Any opinions out there? Thanks in advance.