Understanding and Preventing Dehydration in Dogs
Susan SloanJuly 10, 2024
Dehydration in dogs is a medical emergency. It is often caused by a lack of drinking water but can also result from underlying disorders. The most common causes include fluid loss from the urinary or gastrointestinal (GI) tract.
Diagnosing Dehydration in Dogs
Diagnosing dehydration involves identifying the underlying cause if lack of water isn’t to blame. It can be as simple as rehydrating a dog who’s been without water or challenging, depending on the underlying disease. Most dogs show signs of dehydration after about 24 hours without water. They should have access to fresh water 24/7. Signs of mild dehydration include a dry mouth or nose, excessive panting, and thick drool. Immediate access to water is crucial.
Symptoms of Dehydration
A healthy adult dog can go without water for no longer than 48 to 72 hours before dangerous dehydration symptoms appear. Symptoms include:
Skin “tenting”
Loose or wrinkled skin
Rapid weight loss
– Depression
Elevated heart rate
– Vomiting
Excessive urination
– Panting
weak pulse
– Diarrhea
– Lethargy
Excessive drooling
Sunken eyes
Lack of appetite
– Weakness
Sticky, dry gums
– Collapse
These symptoms mean your dog needs immediate veterinary care. Dehydration throws off electrolyte balance, affecting organ functions. Without quick rehydration, death can occur.
Emergency Care
On your way to the vet, keep your dog cool with an A/C vent or a fan. Offer water or an electrolyte solution like unflavored Pedialyte. Studies show dogs may drink more with an electrolyte solution than regular water .
Diagnosing and Treating Dehydration
Veterinarians can spot significant dehydration easily. Two common, preventable causes are leaving dogs outside in hot weather and empty or frozen outdoor water dishes. If a dog is vomiting, has diarrhea, or isn’t eating or drinking, dehydration is likely.
The bigger challenge is identifying the underlying cause. Conditions like excessive drooling, panting, ulcers, infections, GI parasites, or obstructions can cause fluid loss. Vomiting and diarrhea are primary causes of dehydration in dogs and cats. Other causes include:
Kidney disease
Burns or skin injuries
Toxin ingestion, like antifreeze
Endocrine diseases (diabetes, Addison’s disease)
Heat stroke
Diagnostic tests include blood count, serum biochemistry profile, packed cell volume (PCV), total plasma protein (TPP) tests, urinalysis, and fecal tests. Results indicate overall health and dehydration levels. Increased PCV, TPP, and abnormal urine specific gravity point to moderate to severe dehydration.
Further tests, like x-rays, ultrasounds, urine or fecal cultures, toxin ingestion tests, adrenal gland function tests, and barium studies, may be required to find the root cause. Young and elderly pets dehydrate quickly and need prompt veterinary care.### Treatment for Dehydration
Treatment goals are to replace lost fluids, correct electrolyte imbalances, and resolve the underlying cause. Moderately to severely dehydrated pets need hospitalization and IV fluids with electrolytes over 24 to 48 hours. Fluid replacement rate depends on dehydration severity, size, weight, and overall health.
Here is a link to one source of electrolyte products for dogs.https://amzn.to/4bAQgnv
Preventing Dehydration
Dogs get much of their water from food. Feed a species-specific, balanced, moisture-dense diet. Kibble has low moisture content, around 11%, compared to a dog’s natural diet, which has about 70%. Without extra water, kibble-fed dogs may live in low-grade dehydration.
Encourage drinking by placing multiple bowls of clean, filtered water in glass or stainless-steel bowls around the house. Replace water several times daily. If your dog will be outside in the heat, be sure to have water available. https://amzn.to/3W712O6
Veterinarian Dr. Debra Eldredge emphasizes the importance of fresh water for bodily functions like urine production, thermoregulation, blood flow, nerve and muscle function, and electrolyte balance. She advises adding bone broth or sardine juice to water if your dog isn’t drinking enough .
For vomiting or diarrhea lasting more than a day, contact your vet, especially for very young, senior, or chronically ill pets.
Sources
1. Whole Dog Journal: Dr. Debra Eldredge on dehydration in dogs
2. Study on dogs’ water intake with electrolyte solution vs. regular water
3. Veterinary insights on the importance of water for dogs’ health
Photos Courtesy of Pixabay
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About The Author
Susan Sloan
Married mother of 5 and grandmother of 13. Have loved and shared our home with many breeds from Heinz 57 to purebred Saint Bernards. Professionally counseled breeders re genetic compatibility to ensure best combinations for their breeding goals. Keeping kids and puppies healthy and happy has been one of the great joys of my life and it is a pleasure to share the fruits of my education and experiences with other dog lovers.