Deep wounds should be examined by your vet. If there is any question in your mind about whether a wound is deep it is best to be sure. It is also a good idea to review your dog's vaccination status and make sure that his or her rabies vaccination is current whenever a bite or suspected bite of unknown origin is present. Dear Dr Mike, My dog, a two year old Dalmation was hit by a car a week ago. She is nearly due to come home and will be spoilt on her return.
Pneumothorax refers to air accumulation in the chest cavity.
There should be no air pressure outside the lungs. This enables them to inflate when the muscle of the chest are relaxed and it expands. The air is then forced out of the chest by contraction of the muscle of the chest. When the lung is damaged and leaks air, it collapses the lung. The same thing happens when there is a hole in the chest allowing air in.