Chronic renal failure (CRF) is a progressive disease that causes irreversible kidney damage in afflicted cats. CRF is often not diagnosed until there is significant kidney damage: up to 70 percent of renal function can be lost before obvious symptoms occur. If diagnosed early, the condition can be managed, but the prognosis for cats with advanced CRF is grim. Ongoing research continues into this disease.
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Water Consumption
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Increased thirst and excessive urination are the first noticeable signs. Some cats will hunch over their water bowls, drool and have an ammonia-like halitosis.
Digestive
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CRF can cause stomach irritation (uremic gastritis) that leads to vomiting and constipation. Cats may gag and cough after eating.
Body Condition
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As the condition progresses, cats experience a loss of body condition. Muscle wasting, weight loss and a poor hair coat result.
Physical Symptoms
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As symptoms increase, cats may become generally uncomfortable. Lethargy, weakness and a sensitivity to sound develop in later-stage CRF.
Blood Disorders
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As the kidneys lose functionality, blood disorders develop. Anemia and hypertension are common in cats with CRF. Both of these symptoms can be managed with medications.
End Stage
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In the end stages of CRF, cats may experience convulsions and low body temperature. Cats in the final stages of kidney failure may slip into a coma.
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