Abnormal Breathing in Cats A cat's respiratory motion should be
smooth, even, and unrestrained. Rapid breathing at rest, coarse
breathing, wheezing, rasping, coughing, and bubbling in the
chest are all abnormal. (However, when a cat is intently
sniffing an object, the respirations may appear abnormal for a
brief time.) Possible causes of abnormal breathing are discussed
in this section, along with their signs. Many feline respiratory
problems have infectious causes. - Rapid breathing. This can be
caused by pain, stress, fever, or overheating. Other conditions
to consider are shock, dehydration, anemia, lung disease, heart
disease, and a buildup of acid or toxic substances in the blood
(diabetes, kidney failure, or poisoning). An increased rate of
breathing at rest means a veterinary examination is necessary.
X-rays and other tests may be needed to help identify the exact
cause. - Slow breathing. A very slow rate of breathing is found
in cats with narcotic poisoning, encephalitis, or a blood clot
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