Pulmonary Thromboembolism (Blood Clots in the Lungs) in Cats

A blood clot in a pulmonary artery can cause sudden respiratory distress or collapse. Pulmonary thromboembolism is a potentially fatal emergency.

Editorial overview based on the linked VCA resource; this is not the complete original handout. Prepared 2026-10-03; not veterinarian-reviewed. Diagnosis and treatment, including medication choice and dose, require veterinary guidance.