Heat Stroke Is A Medical Emergency

When your pet overheats, every minute matters. 

Heat stroke can cause life-threatening damage to the brain, kidneys, liver, gastrointestinal tract, heart, and blood-clotting system. 

If your dog or cat is showing signs of heat stroke, do not wait to see if they improve. Seek emergency veterinary care immediately. 

Evolution Veterinary Specialists provides 24/7 emergency and critical care for pets experiencing heat stroke and other life-threatening conditions. 

Know The Warning Signs

Heat stroke can develop quickly—especially in hot weather, during exercise, or in pets left in warm environments. 

Signs of heat stroke may include: 

  • ♦Excessive or uncontrolled panting  
  • ♦Difficulty breathing  
  • ♦Excessive drooling  
  • ♦Bright red, dark red, pale, or abnormal gums  
  • ♦Weakness or collapse  
  • ♦Stumbling or disorientation  
  • ♦Vomiting or diarrhea  
  • ♦Bloody diarrhea  
  • ♦Tremors or seizures  
  • ♦Altered mentation or unresponsiveness  
  • ♦Abnormal bleeding or bruising  
  • ♦Loss of consciousness  

 

If your pet is collapsing, having seizures, struggling to breathe, or is unconscious, this is an immediate life-threatening emergency. 

What should I do if I suspect Heat Stroke?

Start cooling while you head to the hospital. 

If your pet is overheated: 

  1. Move them out of the heat.
    Get your pet into shade, air conditioning, or another cool environment immediately.
  2. Begin gentle cooling.
    Use cool or room-temperature water and airflow from a fan or air conditioner.
  3. Avoid extreme cooling.
    Do not use ice water or immerse your pet in ice, which can cause blood vessels to constrict and may interfere with effective cooling.
  4. Do not force your pet to drink.
    If they are alert and able to swallow normally, you can offer small amounts of water.
  5. Go directly to an emergency veterinarian.
    Even if your pet appears to recover, heat stroke can cause internal organ injury that may not beimmediately apparent. 

Why Heat Stroke Is So Dangerous

Heat stroke isn't simply "being too hot." 

When a pet's body temperature rises to dangerous levels, the resulting injury can trigger a cascade of systemic problems. 

Severe hyperthermia can cause: 

Brain injury 
Neurologic abnormalities, seizures, altered consciousness, and swelling of the brain can occur. 

Kidney injury 
Heat stroke can severely compromise kidney function and may lead to acute kidney injury. 

Gastrointestinal injury 
The intestinal lining can become damaged, potentially allowing bacteria and toxins to enter circulation. 

Liver injury 
The liver can sustain significant damage, sometimes requiring prolonged hospitalization and intensive monitoring. 

Blood-clotting abnormalities 
Heat stroke can disrupt the body's clotting system and may result in abnormal bleeding or disseminated intravascular coagulation (DIC). 

Cardiovascular complications 
Severe overheating can place tremendous stress on the heart and circulatory system. 

Multi-organ failure 
In the most severe cases, heat stroke can progress to failure of multiple organ systems. 

Your Pet May Look Better Before They Are Out Of Danger

One of the most important things to understand about heat stroke is that visible improvement does not necessarily mean the emergency is over. 

A pet may begin acting more normally after cooling while significant internal injury is still developing. 

At EVS, our emergency and critical care teams can monitor for complications such as: 

  • ♦Acute kidney injury  
  • ♦Liver injury  
  • ♦Electrolyte abnormalities  
  • ♦Low blood pressure  
  • ♦Abnormal heart rhythms  
  • ♦Gastrointestinal injury  
  • ♦Abnormal clotting  
  • I♦nternal bleeding  
  • ♦Neurologic complications  

Depending on the severity of the heat stroke, your pet may require hospitalization, intravenous fluids, oxygen support, intensive monitoring, blood products, medications, and advanced critical care. 

What Happens At Evolution Veterinary Specialists?

When your pet arrives, our emergency team will rapidly assess their condition and begin stabilization. 

Treatment may include: 

Rapid assessment & stabilization 

We evaluate temperature, cardiovascular status, respiratory function, neurologic status, and other critical parameters. 

IV fluid therapy 

Intravenous fluids may be used to support circulation, hydration, and organ perfusion. 

Temperature management 

Our team carefully monitors and manages body temperature while avoiding complications associated with overly aggressive cooling. 

Laboratory monitoring 

Bloodwork allows us to monitor kidney and liver function, electrolytes, blood glucose, red and white blood cells, and clotting abnormalities. 

Intensive monitoring 

Severely affected patients may require continuous monitoring and repeated laboratory testing as complications develop. 

Critical care 

Patients with significant organ injury may require hospitalization in our critical care service for ongoing treatment and monitoring. 

Which Pets Are At Higher Risk?

Any dog or cat can develop heat stroke. 

However, some pets are particularly vulnerable, including: 

  • ♦Brachycephalic breeds such as Bulldogs, French Bulldogs, Pugs, and Boston Terriers  
  • ♦Overweight or obese pets  
  • ♦Very young or elderly pets  
  • ♦Pets with heart or respiratory disease  
  • ♦Pets with other underlying medical conditions  
  • ♦Dogs exercising vigorously in hot or humid weather  
  • ♦Pets left in warm vehicles or poorly ventilated spaces  

 

Remember: 

A parked car can become dangerously hot within minutes—even when the outside temperature doesn't seem extreme. 

Preventing Heat Stroke

The best treatment for heat stroke is prevention. 

Keep your pet safe in hot weather: 

Avoid strenuous exercise during the hottest part of the day. 

Never leave your pet unattended in a parked vehicle. 

Provide access to fresh water and shade. 

Be especially cautious with flat-faced breeds. 

Watch pavement temperatures. 
If it's too hot for your hand, it's too hot for your pet's paws. 

Don't assume swimming eliminates the risk. 
Pets can still overheat during activity, even around water. 

Know your pet's limits. 
A dog who wants to keep running may not recognize that they are becoming dangerously overheated. 

When Your Pet Needs More Than An Emergency Room

Heat stroke can quickly become a critical care case. 

At Evolution Veterinary Specialists, emergency and specialty medicine work together to provide advanced care for critically ill patients. 

Our hospital offers: 

24/7 Emergency Care 
Immediate evaluation and stabilization for life-threatening emergencies. 

Critical Care 
Advanced monitoring and treatment for patients requiring intensive hospitalization. 

Advanced Diagnostics 
Access to sophisticated diagnostics to identify and monitor organ injury. 

Specialty Veterinary Care 
A multidisciplinary team for complex cases and patients with significant underlying disease. 

Heat Stroke in Dogs & Cats | Evolution Veterinary Specialists 

Heat stroke is a life-threatening emergency that can cause severe damage to a pet's organs, including the kidneys, liver, brain, gastrointestinal tract, heart, and blood-clotting system. Dogs and cats experiencing excessive panting, difficulty breathing, weakness, collapse, vomiting, diarrhea, seizures, abnormal gum color, or altered consciousness should receive immediate veterinary attention. 

Evolution Veterinary Specialists provides 24/7 emergency and critical care for pets in Lakewood and the greater Denver area. Our emergency and critical care teams provide rapid stabilization, diagnostic testing, intensive monitoring, intravenous therapy, and advanced treatment for pets suffering from heat stroke and other critical illnesses.