1. Decreased Heart Rate

A dying dog’s heart rate will also go on a downward slope of gradual decrease, falling down from the usual range of 100-130 bpm to 60-80 bpm, and even lower as their time comes closer.
Besides the fact that the more of these symptoms mentioned above that your dog shows all at once, the higher the chances are that their time is drawing to a close, you can always have your veterinarian take a look at your pooch as well.