If your cat is drinking more water, urinating more frequently, or slowly losing weight, it is important to have their kidney function evaluated. Feline Chronic Kidney Disease (CKD) is highly common in older cats. While it is a progressive condition, catching it early and managing it appropriately can extend your cat’s life expectancy and dramatically improve their quality of life. Here is an overview of how the disease progresses, how we monitor it, and the best paths for long-term treatment.

How Is Kidney Disease Staged?

We categorize kidney insufficiency into four distinct stages based on international guidelines. These stages correlate with the level of toxin buildup in the bloodstream, its effects on your cat’s daily comfort, and the risk of additional complications (such as high blood pressure, protein loss in the urine, anemia, and low potassium).

  • Stage 1: Pets have evidence of kidney disease, but there is no evidence of a change in actual kidney function yet.
  • Stage 4: Advanced disease where pets begin to feel visibly sick due to advanced uremia (poisoning by toxins the kidneys can no longer adequately remove).

Our primary goal is to intervene early to prevent or delay the progression to advanced uremia.

The Foundation: Diet and Supplements

A prescription renal diet is the single most important intervention. These diets are specifically formulated to reduce uremic toxins, control blood pressure, balance calcium and phosphorus, maintain proper potassium levels, and reduce inflammation.

Dietary Recommendations:

Note: Canned/wet food is always heavily recommended due to its higher moisture content. Because cats can be picky, most of these diets offer several different textures and flavor profiles, and they come with a 100% money-back guarantee if your cat refuses to eat them.

Supplements:

  • Omega 3 Fatty Acids (Welactin®): Known to have numerous kidney health benefits and heavily recommended.

Monitoring and Follow-Up Care

Research shows that cats with kidney insufficiency who are managed appropriately can live twice as long as cats without management. Proper monitoring includes:

  • Monitoring Weight: This is often the best indicator of how an older kitty is doing and how our treatment plan is working. You can find reasonably priced baby scales online.
  • Blood Pressure Monitoring: Over 60% of cats with chronic renal disease also develop Systemic Hypertension. Left unchecked, this can lead to irritation, loss of appetite, retinal detachment (which can lead to blindness), and embolism.
  • Exam & Blood Work (Twice annually): To track kidney values, electrolytes, and red blood cell counts as the disease slowly progresses.

Managing Disease Progression (Advanced Interventions)

As kidney disease progresses to later stages, clinical signs like weight loss, inappetence, vomiting, and heavy drinking/urinating become more apparent. We will adjust the treatment plan to include:

Subcutaneous (SQ) Fluids

SQ fluids are given under the skin to help prevent dehydration and flush toxins from the body. They provide hydration beyond what natural drinking can achieve. Most cats tolerate this incredibly well, and we can easily teach you to administer them at home.

Appetite and Nausea Support

  • Famotidine (Pepcid AC): Can help combat stomach hyperacidity, which frequently occurs with kidney failure. (Available over the counter).
  • Cerenia®: Many patients with late-stage kidney disease experience chronic nausea. Cerenia is an excellent prescription for preventing nausea and improving eating comfort.
  • Mirataz®: A transdermal prescription appetite stimulant applied topically to the inner ear.

Potential Complications

We must also stay vigilant for common complications associated with advanced kidney disease:

  • Urinary Tract Infections (UTIs): Very common in kidney patients, often requiring long courses of antibiotics.
  • Electrolyte Imbalances: Potassium supplementation or prescription phosphate binders may be required as the kidneys lose their filtering abilities.
  • Anemia: Low red blood cell production happens over time. In advanced cases, synthetic Epogen may be needed to stimulate red blood cell production.

Reference Websites for Cat Owners

For more in-depth reading, we highly recommend the Cornell Feline Health Center’s Comprehensive Guide to Feline Chronic Kidney Disease.

This blog is for informational purposes only and is not intended to provide diagnostic or treatment guidance. If you have any concerns about your pet’s health, please contact Cascade Heights Veterinary Center directly by phone at 206-403-1108,  email, or by scheduling an appointment.  Medications, supplements, and prescription diets can be conveniently ordered through our online pharmacy.