YES! When exposed to lack of oxygen and changes in air pressure at altitudes exceeding 8,000 feet above sea level, both dogs and humans can experience altitude sickness.

Can altitude affect a dog?

The short answer is yes, animals like dogs and cats are also sensitive to the harmful effects of high elevation, which can include, in addition to what's mentioned above, vomiting, headache, and, in extreme cases, a build-up of fluid in the lungs and brain, particularly if they will be active when they reach high ...

How do you prevent altitude sickness in dogs?

Altitude sickness in dogs can be completely avoided in most cases. Hydration is key when it comes to prevention. Always carry a pet bowl and plenty of water with you, and offer your pet water as often as you can. A good rule of thumb is every time you take a drink, your dog should, too.