TL;DR: Respiratory failure following an insect sting is a life-threatening emergency. If your cat shows signs of distress like gasping or blue gums, transport them to an emergency vet immediately.
What causes respiratory failure in my cat after an insect sting?
When a cat is stung by an insect such as a bee, wasp, or hornet, their immune system may experience an extreme overreaction to the venom. This condition, known as anaphylaxis, causes the airways to swell and constrict. As the throat and lungs become compromised, the cat enters respiratory failure, meaning they can no longer transport sufficient oxygen to their brain and vital organs.
Is it a medical emergency if my cat is struggling to breathe after a sting?
- Urgency Level: High (Critical Emergency). Breathing failure is a life-threatening situation.
- Watch for signs of anaphylactic shock, such as gasping for air, wheezing, open-mouth breathing, or blue-tinged gums.
- This condition can progress to cardiac arrest within minutes.
- Transport your cat to the nearest emergency veterinary hospital immediately.
How can taking a photo or video help the vet triage my cat?
- If safe and without delaying departure, take a quick photo or a five-second video of your cat's breathing and the sting site.
- A visual record allows the veterinary team to witness the nature of the respiratory distress and any localized swelling.
- This information helps the clinical team prepare necessary life-saving equipment, such as oxygen or epinephrine, before you arrive.
Clinical Context (Merck Veterinary Manual)
In cases of anaphylaxis secondary to insect stings in cats, epinephrine should be administered immediately, SC, at a dosage of 1:1,000 (0.1-0.5 mL), and can be repeated every 10-20 minutes. For IV administration, dilute to 1:10,000 and administer 0.5-1 mL with vigilant monitoring of heart rate, rhythm, and blood pressure. IV fluids are indicated to prevent vascular collapse. Epinephrine (0.01-0.02 mg/kg, IV) can also be given for its bronchodilatory effects. Corticosteroids (prednisolone sodium succinate, 15 mg/kg, IV, or dexamethasone, 2-4 mg/kg, IM or IV) are indicated for allergic bronchitis, asthma, or severe swelling of the larynx or pharyngeal tissues. Other bronchodilators, such as aminophylline or terbutaline, can be administered IM, or albuterol can be given by nebulization in the case of an animal in crisis.
Chapter: Toxicology, Emergency
Source: The Merck Veterinary Manual, 11th Edition (Page 3164)