What happens if a dog swallows a battery and how should it be treated?

If a dog swallows a battery, it can be very dangerous as the battery can cause chemical burns or blockages in the digestive tract. Immediate veterinary attention is needed. Treatment may involve inducing vomiting, endoscopy to remove the battery, or surgery in severe cases. It is important not to try to make the dog vomit at home without consulting a veterinarian first.