TL;DR: Explosive diarrhea in cats is a medium-urgency condition that requires veterinary attention within 24 hours to prevent dehydration. Seek immediate emergency care if the diarrhea is accompanied by blood, vomiting, or extreme lethargy.
What causes explosive diarrhea in cats and what does it look like?
Explosive diarrhea is characterized by the sudden, forceful, and urgent passage of liquid or very loose stools. It often occurs when the lining of the intestines becomes severely inflamed or irritated, moving waste through the digestive tract too quickly for water to be absorbed. This can be caused by various factors, including sudden dietary changes, food allergies, bacterial infections, or intestinal parasites.
Is my cat’s explosive diarrhea a veterinary emergency?
- Urgency Level: This condition is currently classified as Medium urgency.
- Risk Factors: There is a high risk of rapid dehydration, particularly in kittens or senior cats.
- Emergency Symptoms: Contact an emergency veterinarian immediately if diarrhea is accompanied by vomiting, extreme lethargy, or blood in the stool.
- Recommended Action: If your cat is acting normally otherwise, schedule a veterinary appointment within 24 hours to prevent further complications.
How does taking a photo of my cat's stool help with veterinary triage?
- Provides visual evidence of the stool's color and consistency.
- Allows the vet to check for the presence of blood or mucus.
- Helps the medical team determine the severity of gastrointestinal distress.
- Speeds up the identification of specific parasites or infections during your visit.
Clinical Context (Merck Veterinary Manual)
Explosive diarrhea in cats can be a critical clinical sign of severe enterocolitis, potentially leading to hypovolemic and endotoxic shock, characterized by poor capillary refill time, purplish mucous membranes, and cold extremities. Death can occur within hours of onset. Less acute cases may survive 24-48 hours. Necropsy findings include edema and hemorrhage in the large colon and cecum, with fluid and often blood-stained intestinal contents. Profound depression, dehydration, and abdominal pain may be evident on physical examination; palpation can induce vomiting and reveal thickened intestinal loops and enlarged mesenteric lymph nodes. Initial treatment involves a protein hydrolysate diet, with digestible carbohydrates like rice and high-quality protein, while restricting fat to minimize secretory diarrhea. Oral prednisolone (1 mg/kg, bid, tapered) may be indicated for inflammatory components like lymphocytic-plasmacytic or eosinophilic enteritis. In severe cases, chlorambucil (2-6 mg/m2/day, PO, tapered) can be added; metronidazole (10 mg/kg, bid) is often used adjunctively.
Chapter: Gastroenterology, Emergency, Critical Care
Source: The Merck Veterinary Manual, 11th Edition (Page 287)