Heat stroke in dogs.

Effects of Heat Stroke – From the Dog’s Point of View
Dogs suffering from heat stroke will become restless and uncomfortable as their body temperature rises. They will pant, have trouble breathing and feel weak and lethargic. They may whimper, cry out or bark as their discomfort increases. Eventually, affected animals will be in so much distress that they will lie down, become listless and slip into a coma. Unfortunately, by this point, death is fairly imminent unless the dog receives immediate and aggressive medical attention.

Symptoms of Heat Stroke - What the Owner Sees
Most of the time, heat stroke happens to dogs on days that are exceptionally hot. Heat stroke is most common in very old dogs, and in very young puppies that are prone to over-exert themselves. Owners of dogs with heat stroke may recognize one or more of the following signs of this dangerous condition:

Restlessness or agitation for no apparent reason
Whining, barking or vocalizing for no apparent reason
Panting (excessive, prolonged or recurrent; may start, stop, then start again)
Stretching
Frothing/foaming at the mouth
Excessive drooling (hypersalivation)
Labored or difficult breathing (respiratory distress; dyspnea)
Elevated heart rate (tachycardia)
Dry, tacky gums
Vomiting
Diarrhea (may be bloody)
Confusion; disorientation
Lack of coordination (ataxia)
Red gums and other mucus membranes (hyperemia)
Lethargy, listlessness, dullness
Weakness
Recumbency (dog lies down and is difficult to rouse)
Seeking of cool places
Seizures
Uncontrolled muscle tremors
Collapse
Coma
Death
Dogs at Increased Risk of Heat Stroke
Very young and very old dogs have a higher risk of developing heat stroke than do dogs in the prime of their lives. Brachycephalic breeds, obese animals, long-haired dogs and dogs that are black or dark in color are also predisposed to developing heat stroke. Dogs with hyperthyroidism, heart disease, lung disease or thick hair coats have an increased risk as well. Owners who notice that their dog is restless, uneasy, having breathing problems or otherwise is just not doing right should take it to a veterinary clinic immediately.

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