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Hemorrhage of the Lung in Cats

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Pulmonary Contusions in Cats

Pulmonary contusion, or a hemorrhage of the lung, occurs when the cat's lung is torn and/or crushed during direct trauma to the chest. This then impedes the cat's ability to breath and pass arterial blood to a capillary bed in synchrony. Cats suffering from capillary damage may also develop pulmonary fluid in the lungs, as well as hemorrhage.

Pulmonary contusion occurs in both dogs and cats and there is no specific breed, age, or gender predilection. If you would like to learn more about how this disease affects dogs, please visit this page in the PetMD health library.

Symptoms and Types

Tachypnea
Coughing up of blood or blood-tinged fluid
Respiratory distress, or abnormal respiratory effort after a blunt trauma to the chest
Cyanotic (blue-tinged) or pale mucous membranes

Causes

Blunt trauma
Motor vehicle accidents
Fall from a great height
Physical abuse (i.e., beating)
Coagulopathy (coagulation/clotting disorder)

Diagnosis

You will need to give a thorough history of your cat's health, onset of symptoms, and possible incidents that might have precipitated/preceded this condition.

Your veterinarian will then perform a thorough physical exam on your cat, including blood tests, a urinalysis, and chest X-rays. If there are rib fractures, for example, they will show up on X-ray.

Your doctor will also perform coagulation (clotting) tests, and may culture cells from the trachea.