Heart disease is common in cats. Signs include difficulty breathing, open mouth breathing, pale or blue gums,not wanting to move around, too fast or too low heart rate, loss of appetite, diarrhea, acute hind limb paralysis and weight loss.
1. If you suspect a cardiac emergency, check your cat's ABCs and perform CPR if needed.
2. If the cat cries out or can't move his hind legs, check for a pulse in the hind legs. Pulse will be absent if there is a clot.
Severe pain and paralysis can result if a blood clot forms in a cat's heart and lodges in his aorta, where it branches to the hind legs.
3. Take your cat to a veterinary hospital immediately.