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Educational Articles

Cats + Emergencies

  • Arsenic poisoning is the accidental ingestion, skin contact, or inhalation of products containing a toxic dose of arsenic. Clinical signs can include abdominal pain, salivation, vomiting, diarrhea, staggering, weakness, rapid weak pulse, lethargy, low body temperature, collapse, and death. Supportive therapy is a crucial part of treating arsenic poisoning.

  • Acetaminophen (Tylenol), a common human drug used to control pain and fever, is poisonous in cats. Since cats are not able to efficiently metabolize acetaminophen, they are more vulnerable to toxicity. Cats develop toxicity at much lower doses than dogs.

  • Acute respiratory distress syndrome, also known as shock lung, is a life-threatening complication of critical illness in cats, such as systemic infection or disease, severe trauma, or near-drowning. Treatment involves targeting the underlying cause while also supporting the cat's compromised lung function with the use of an oxygen cage, an oxygen line direct to the cat's nasal passages, or in severe cases, a mechanical ventilator. Unfortunately, the prognosis for this condition is poor.

  • Ethanol overdose by ingestion, inhalation, or skin absorption leads to alcohol poisoning. Isopropanol (isopropyl alcohol/rubbing alcohol) and methanol (methyl alcohol) can also cause alcohol poisoning. If a pet is not showing clinical signs, decontamination may be performed, including inducing vomiting (for ingestions) or bathing (for skin exposure). Other therapies are discussed. Recovery is expected within 24–36 hours of the onset of signs.

  • Anticoagulant rodenticide is used to kill mice, rats, and other rodents. Poisoning occurs when a cat ingests rodenticide. Anticoagulant rodenticides cause excessive bleeding by interfering with vitamin K1 recycling in the body. Vitamin K1 is needed for the body to make certain clotting factors that enable blood to clot and help to control bleeding.

  • An aortic thromboembolism (ATE) results when a blood clot is dislodged and travels through the aorta, becoming lodged in a distant location. This clot causes severely reduced blood flow to the tissues receiving blood from that section of the aorta, leading to decreased oxygen in the tissues. A heart condition called hypertrophic cardiomyopathy is the most common cause. This article outlines clinical signs, treatment, monitoring, and prognosis for cats with this condition.

  • Aspirin is a commonly used, over-the-counter, nonsteroidal anti-inflammatory drug (NSAID) and is used to treat fever, pain, swelling, and clotting disorders in humans. Aspirin poisoning occurs when a cat ingests a toxic dose of aspirin, either through misuse or accidentally. Cats are especially sensitive to aspirin and salicylates, and as a result are more vulnerable to poisoning than dogs. High doses may damage major organs like the liver, kidneys, and central nervous system.

  • Atrial fibrillation describes very rapid contractions or twitching of the heart muscle, specifically in the atria. Most of the time, atrial fibrillation in cats occurs secondary to heart disease. Sometimes, in large breed cats, atrial fibrillation will occur as a primary heart problem. Most cats who develop atrial fibrillation have underlying heart disease, so the signs that are observed are often related to that underlying condition, and may include exercise intolerance, cough, or difficulty breathing. Treatment varies depending on whether the pet has primary or secondary atrial fibrillation. Your cat will need to be monitored on a regular basis.

  • Behavioral health medications are used in animals and humans. They include antidepressants, atypical antidepressants, antipsychotics, and amphetamines. Dogs and cats often require lower doses of these medications than humans and are sensitive to overdoses. As such, when a dog or cat gets into human doses of these medications or a pill vial of their own medication, behavioral health medication poisoning can occur.

  • This handout summarizes the possible reactions a cat may experience when receiving a blood transfusion. Many transfusion reactions occur acutely, within seconds of starting the transfusion up to 48 hours post-transfusion. The clinical signs and treatment protocols both vary based on the type of reaction. Prior to a blood transfusion, your veterinarian may perform tests to help ensure that the donor blood is a good match for your cat.