Cat Chronic Kidney Disease: Management and Quality of Life

Chronic Kidney Disease is the leading cause of death in elderly cats and requires careful management to maintain quality of life through the disease progression.

Key Facts

CKD affects an estimated 35% of cats over the age of 15 and is staged using the IRIS system from Stage 1 to Stage 4
Early CKD is often detected through routine blood and urine testing before clinical signs develop
Signs of advanced CKD include weight loss, reduced appetite, increased thirst, vomiting, and lethargy
Renal diets with restricted phosphorus and high-quality protein slow disease progression
Subcutaneous fluid administration at home can significantly improve quality of life in cats with moderate to advanced disease

Welfare Considerations

CKD causes progressive discomfort through uraemic toxin accumulation, anaemia, and dehydration. Cats in advanced stages experience nausea, weakness, and profound malaise. The challenge for owners is managing a slowly progressive disease that requires ongoing veterinary monitoring while maintaining the cat's quality of life and dignity. Regular quality of life assessment is essential to guide decisions about escalation of treatment or euthanasia timing.

What You Can Do

Test all cats over 10 years old annually for kidney disease including urine specific gravity and SDMA
Transition CKD cats to renal diets gradually, using whichever formulation the cat will accept
Learn to administer subcutaneous fluids at home — most owners can be trained quickly and it dramatically improves wellbeing
Use quality of life scales to monitor your cat regularly and discuss end-of-life planning with your vet proactively