5 signs your dog is overheating

Overheating in dogs is a dangerous situation that can prove fatal. Agria's Senior Veterinary Advisor, Robin Hargreaves, explains how to prevent overheating and what to do if your dog is affected.

Most of us are very familiar with the fact that dogs can die in hot cars. Often, however, overheating, or hyperthermia, frequently happens at home, and can prove fatal for our dogs.
This could be an even more serious problem this year. Many dogs that usually have their their coats clipped at the groomers have been unable to go to their appointments and have significantly more fur than usual. And, as many of us are at home enjoying the sunny weather, our dogs, that might usually be indoors, are outside. Make sure they stay cool and safe.
If you think your dog is overheating:
1.    Immediatley remove them from the source of the heat
2.    Reduce their temperature by laying a towel on them and pouring cool (not cold) water over it
3.    Unless there is a rapid return to normal breathing, get to a vet immediately in a well ventilated pre-cooled vehicle. 
 
High-risk dogs
Dogs with poor circulation and respiratory function, or that are overweight, are at a higher risk from heat.
 
Older dogs will often fall into this category, along with dogs with short faces and/ or small nostrils – the brachycephalic breeds such as French Bulldogs and Pugs.
 
These dogs’ bodies are less able to cope with extremes of temperature, and so are already closer to the crisis point for overheating. It’s crucial to be aware of seemingly harmless situations that could quickly cause them to overheat. Classic examples are sitting by a sunny window, in a warm conservatory, and travelling in a warm car.
 
Overheating can happen faster than you think
Putting a dog in a hot car to set off for a journey, even if you leave immediately, is dangerous. Higher-risk dogs with small nostrils, or that are overweight, have circulatory problems, are elderly, or are vulnerable in any other way, can reach the point of heatstroke before your car has cooled down.
 
So, on very hot days, make sure your car is cool before you put the dog in, or you very quickly risk a veterinary emergency.
 
Lying in a hot place and over-exercising in high temperatures can also rapidly lead to heatstroke. Don't assume that because your dog is happy to join you on a walk in the heat that they are fine. Heatstroke can develop quickly and if this happens on a walk with no access to fast cooling, you could have a very serious situation on your hands in a very short time.
 
How to tell if your dog is overheating
Any excessive panting is your first warning sign that your dog is overheating. So, if you see this, don’t wait for any more symptoms – get them cooled down immediately.
 
The quickest and simplest way to do this is to remove them instantly from the source of the heat and into a cool environment. As dogs are unable to cool down by sweating, we can create the effects of sweating for them simply using a tea towel or towel.
 
Lay the towel over the dog’s body and pour cool (not cold) water over it, allowing the heat from the dog to evaporate the water, which will reduce their temperature. A fan can also be very helpful to speed up the process.
 
Life-threatening warning signs
Once overheating has developed, your dog may:
 
·         Become restless and show discomfort
·         Vomit or have diarrhoea
·         Drool excessively
·         Have an increased heart rate
·         Lose coordination, have seizures or muscle tremors
 
These symptoms represent a life-threatening veterinary emergency, so follow the cooling steps above while getting them into a cool car and to the vet immediately. Dogs that are seriously overheating may need oxygen, fluids or other treatment and it is vital that they get the care that they need urgently.