Chocolate Acid - Clean off what you can see, do not induce vomiting, transport to vet. Alkalies - Clean off what you can see, do not induce vomiting, transport to vet. The first priority is to establish an unobstructed airway. Open airways by extending head and neck. Check and remove any foreign materials from the mouth and pull the tongue forward.
Breathing Look and listen for signs of breathing.
If none, place your hands around the muzzle to prevent air from escaping and breathe forcefully into the nostrils. The chest should expand and fall if you are getting air into the lungs. Do not be too forceful with small animals. If there is no pulse, place the dog on a hard surface with its right side down. Use the heel of your hand to compress the chest on the lower side immediately behind the elbow.