What are the warning signs that my dog needs to see a vet?

What are the warning signs that my dog needs to see a vet?

Bernadine D. Cruz. DVM (Companion Animal Medicine Expert, Laguna Hills Animal Hospital ) gives expert video advice on: What is the best way to transport my injured dog to the vet?; What medical supplies should I keep at home for my dog?; What do I do if my dog swallows poison? and more...