Will Falconer, DVM Moderator
My "it's time for euthanasia" call usually revolves around at least two issues:
Unable to rest (usually due to pain, but not always), and/or
Vocalizing due to pain and discomfort.
If either or both are present, I call it.
Others are less clear but equally justifiable: an animal who's got a death sentence disease whose quality of life is really impaired. That could run the gamut from soiling her environment, much to her chagrin all the way to normal front half but paralyzed lower half. I don't fault someone who choses euthanasia in circumstances like this. We know recovery is impossible due to the level of pathology and life just really sucks.
And, as L said, the drug to euthanize is only suitable for IV use, and the main class is a controlled substance, so best to get a vet involved. Ahead of time is best, mobile is ideal.
Good questions, Mark. Thanks.