Early symptoms of feline pulmonary edema:

The most obvious symptom of feline pulmonary edema in the early stages is frequent coughing and shortness of breath. As the condition gradually worsens, breathing difficulties, dry eyelids, enlarged chest, and bloody foam will appear in the nasal cavity and trachea. When a cat shows symptoms of suspected pulmonary edema, it is recommended to take it to the doctor for an X-ray examination. Pulmonary edema can cause immediate death.

Factors causing pulmonary edema in cats:

A. Increased pulmonary capillary hydrostatic pressure.

B. Decreased plasma colloid osmotic pressure.

C. Increased interstitial negative pressure.

D. Changes in capillary permeability.

E. Pulmonary lymph circulation is blocked. In clinical practice, there are often many unpredictable factors that cause pulmonary edema symptoms in cats during or after surgery.