PET HEALTH: Heat Safety

By Dr. Johnathan Pierce

Summertime is winding down and (not soon enough) we will begin to experience cooler weather. Unfortunately, over the last week we have treated two patients with heat exhaustion and stroke.  The temperatures outside are such that even a short period of time being active outdoors during the day is dangerous.  

Our first patient of the week was only outside for 30 minutes on a walk when he started to show signs of respiratory distress (difficulty breathing).  His initial temperature on presentation was 105.6F which quickly escalated to 106.5F.  His respiratory distress was so severe that it caused his larynx to swell, causing laryngeal edema (swelling and inflammation of the “voice box” apparatus) as well as pulmonary edema (fluid buildup in the lungs).  We were able to reduce his temperature through aggressive intravenous fluid therapy and topical therapy.  His respiratory distress resolved with medications and normalization of his temperature.  

Our next patient presented in respiratory distress after a few hours of running in and out of a camper for three hours.  He was a very large brachycephalic (short nosed) pit bull whose presenting temperature was 106.1F.  We were able to quickly normalize his temperature, however severe laryngeal edema and moderate pulmonary edema developed in this patient also, which we treated with various medications.  Exacerbated by his short nose and subsequent long soft palate, he continued to have difficulty breathing and was sedated to normalize the distress. 

Both patients survived their ordeals but there is a very important lesson here.  Although there are multiple factors that increase the possibility of heat exhaustion/stroke, each pet is different and this can happen to any pet.  Long walks are not recommended during the heat of the day this time of year. Try to exercise your pet early morning or later in the evening.  

Signs of heat stroke / exhaustion include the following:

  • Heavy panting/difficulty breathing
  • Fever, typically above 103F
  • Muddy colored, purple blue, or bright red tongue
  • Rapid heart rate
  • Lethargy and weakness
  • Vomiting
  • Diarrhea 
  • Difficulty walking – pet may look drunk

If you notice any of these symptoms, call and take your pet to your veterinarian or to an emergency clinic immediately. 

Island Life Animal Hospital
Dr. Danielle Gallo & Dr. Johnathan Pierce
5901 Sun Blvd., Suite 107, St. Petersburg
727-289-3776
islandlifeanimalhospital.vet

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