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Heatstroke in Dogs - Causes & Treatment

Heatstroke in Dogs - Causes & Treatment

Like humans, dogs can get heatstroke in hot temperatures. Here, our Ferguson Animal Hospital vets will explain heatstroke in dogs, its possible causes, and how to prevent it.

About Heatstroke In Dogs

As hot weather arrives, heatstroke (also known as heat exhaustion) is a serious — possibly fatal — condition for dogs. When a dog’s body temperature is elevated above a normal range (101.5°F), hyperthermia (fever) can occur.

Heatstroke is a form of hyperthermia. It happens when the heat-dissipating mechanisms in your dog’s body are overwhelmed by excessive heat. When your dog's body temperature rises past 104°F, they enter the danger zone. If body temperature is above 105°F, this indicates heatstroke.

That is why it is important to make sure your dog has plenty of water and a cool place to relax during the hot summer months.

Causes of Heatstroke in Dogs

On summer days, a vehicle's temperature can quickly exceed dangerous levels (even when the inside of our vehicles does not seem “that hot” to us, remember that your dog has a fur coat on). Leave the dog at home while you shop.

A lack of access to water and shade in your backyard or at the beach can also spell trouble. Shade and water are vital on warm weather days, especially for dogs with medical conditions such as obesity, and senior dogs.

Your dog's breed could also be a contributing factor when it comes to heatstroke; flat-faced, short-nosed dogs tend to be more vulnerable to breathing issues. As you might imagine, thick coats quickly become uncomfortable. Each dog (even ones who love spending time outside engaging in activities) requires close supervision, especially on days when the mercury is rising.

Heatstroke Symptoms in Dogs

During spring and summer, watch carefully for signs of heatstroke in dogs including any combination of the following symptoms:

  • Mental “dullness” or flatness
  • Red gums
  • Excessive panting
  • Drooling
  • Signs of discomfort
  • Unable or unwilling to move (or uncoordinated movement)
  • Diarrhea
  • Vomiting
  • Collapsing or loss of consciousness

If your dog is displaying any of the above heatstroke symptoms it's time to take your dog to see a vet right away for treatment.

What To Do If Your Dog Shows Signs of Heatstroke

Fortunately, heatstroke in dogs can be reversed if detected early. If you notice your dog displaying any symptoms listed above, immediately take them to a cooler place with good air circulation. If symptoms do not improve quickly and you are not able to take your dog’s temperature, contact your vet immediately for advice. 

Take your dog’s temperature if you have access to a rectal thermometer. If their temperature is above 104°F, this qualifies as an emergency and your dog will need to see a vet. If this temperature is above 105°F, immediately hose or sponge your dog’s body with cool (not cold) water. Pay special attention to their stomach. A fan may also be useful. Contact your vet or your nearest emergency vet for further instructions.

Heatstroke is a very serious condition. Take your dog to a vet right away whether you can reduce their temperature or not.

How To Prevent Heatstroke

Prevention is key when it comes to protecting your dog from heatstroke. To help prevent your dog from getting heatstroke be very cautious about how much time your dog spends outside or in the sun during the summer. Do not expose your dog to heat and humidity - their bodies (especially those with short faces) are unable to handle it.

It is also very important to remember to NEVER leave your dog in a car with closed windows - even in the shade. Make sure to provide your dog with lots of shade to retreat to and easy access to plenty of cool water. A well-ventilated dog crate or specially designed seat belt for dogs may also work well.

Note: The advice provided in this post is intended for informational purposes and does not constitute medical advice regarding pets. For an accurate diagnosis of your pet's condition, please make an appointment with your vet.

If you have questions about treating or preventing heatstroke in dogs, contact our North Providence vets today.

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Ferguson Animal Hospital is accepting new patients! Our experienced vets are passionate about the health of North Providence companion animals. Get in touch today to book your pet's first appointment.

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