Cat Chronic Kidney Disease: Welfare Management in Older Cats

Chronic kidney disease is the most common serious illness in older cats, requiring long-term welfare-focused management.

Key Facts

CKD affects approximately one-third of cats over 12 years of age
Signs include increased thirst and urination, weight loss, reduced appetite, vomiting, and lethargy
International Renal Interest Society (IRIS) staging guides treatment based on creatinine and SDMA levels
Dietary management with phosphorus restriction and appropriate protein levels slows progression
Subcutaneous fluid therapy can significantly improve wellbeing in cats with moderate to advanced CKD
Quality of life assessments should guide decisions about treatment intensity and end-of-life planning

Welfare Considerations

Cats with CKD often feel unwell for extended periods — nausea, lethargy, and appetite loss are common symptoms of uraemic toxin accumulation that respond to treatment. Welfare-focused CKD management maintains quality of life through dietary adjustment, adequate hydration, phosphate binder therapy, and regular monitoring. Owner-administered subcutaneous fluids can dramatically improve a cat's wellbeing when dehydration is a persistent problem. Palliative care decisions must be guided by honest quality of life assessment rather than laboratory values alone — a cat eating well and engaging socially at high creatinine may be in better welfare than one with better numbers but no appetite.

What You Can Do

Have senior cats blood-tested annually — early CKD detection significantly improves prognosis
Work with your vet to implement a staged management plan appropriate to your cat's IRIS stage
Learn subcutaneous fluid administration if your vet recommends home fluid therapy
Offer phosphorus-restricted diets in multiple forms to maintain adequate food intake
Use a quality of life scale to guide end-of-life decisions objectively and compassionately