Acute Renal (Kidney) Failure in Cats - Page 1

My Pet: FREE Tools to Care for Your Pet and Connect with Others

Over 10,000 Vet Approved Articles Search All Articles

Acute Renal (Kidney) Failure in Cats

By: Dr. Debra Primovic

Read By: Pet Lovers
Email To A Friend Print
Acute kidney failure (acute renal failure or ARF) is characterized by an abrupt decline in kidney function that leads to changes in the chemistry of the body including alterations in fluid and mineral balance. The changes that arise as a result of ARF affect almost every body system.

The kidneys filter blood, remove the waste products of metabolism, and eliminate them in the urine. The kidneys also regulate the volume and composition of body fluids (including mineral concentrations and acid base balance), and produce hormones that stimulate the production of red blood cells (erythropoietin) and regulate calcium balance (calcitriol).

Acute kidney failure can be caused by toxic injury to the kidneys, decreased blood flow and oxygen delivery to the kidneys, infections, obstruction of the kidneys and prevention of urine elimination caused by a ruptured bladder.

The recent recognition of kidney failure is not necessarily the same as acute renal failure, since some animals with chronic kidney failure tolerate it for some time before symptoms are apparent.

There is no specific breed predilection but older animals are thought to be at greater risk for acute kidney failure. Acute kidney failure is more common in the fall and winter due to pet exposure to anti-freeze which contains ethylene glycol. Cats that are allowed to roam outside without supervision potentially have increased exposure to ethylene glycol.

The symptoms of ARF, although often severe, are not specific. Even with intensive management, ARF is a very serious disorder and often is fatal.

What to Watch For

  • Disorientation
  • Incoordination
  • Decreased urine production
  • Straining to urinate
  • Loss of appetite
  • Lethargy
  • Vomiting
  • Weakness
  • Changes in water consumption and urination


    Your veterinarian will take a complete medical history specifically questioning exposure to ethylene glycol (anti-freeze), recent surgery or anesthesia (possibly causing decreased blood flow to the kidneys), exposure to drugs toxic to the kidneys (aminoglycoside group of antibiotics and non-steroidal anti-inflammatory drugs) and previous illnesses. The following diagnostic tests may also be necessary to recognize acute kidney failure and exclude other diseases. Tests may include:

  • Complete physical examination
  • Serum biochemistry tests
  • Urinalysis
  • Complete blood count
  • X-rays of the abdomen
  • Culture of the urine
  • Ultrasound examination
  • Kidney biopsy
  • Ethylene glycol test
  • Blood tests for certain infections


    ARF is a life-threatening serious condition that requires hospitalization and intensive treatment. Treatment consists of identification and correction of life-threatening problems while searching for the underlying cause of ARF. Treatment for ARF may include one or more of the following:

  • Induce vomiting
  • Intravenous fluids
  • Drugs that encourage urine production
  • Management of blood electrolyte abnormalities
  • Monitor urinary output
  • Control of vomiting
  • Management of anemia
  • Peritoneal dialysis or hemodialysis
  • Treatment with 4-methylpyrazole (Antizol®) or ethanol

    Home Care

    Acute renal failure is a life-threatening condition and there is no effective home treatment. If you suspect your pet has this condition, or if you even suspect your pet may have consumed even a small amount of anti-freeze, you should call your veterinarian immediately. Your veterinarian may instruct you to induce vomiting before bringing your pet to the hospital.

    Administer any medications prescribed by your veterinarian. Follow-up examinations and laboratory tests are important to assess your pet's response to treatment. Allow free access to fresh clean water.

    Preventative Care

    Avoid exposure to ethylene glycol (anti-freeze), and avoid exposure to drugs known to be toxic to the kidney (e.g. aminoglycoside antibiotics and non-steroidal anti-inflammatory drugs). Don't allow cats to roam outside unattended.

  • Comment & Share
    Email To A Friend Print
    Keep reading! This article has multiple pages.

    Cat Photos Enjoy hundreds of beautiful cat photos Let's Be Friends Follow Us On Facebook Follow Us On twitter


    Email to a Friend

    Article to eMail
    Acute Renal (Kidney) Failure in Cats

    My Pet
    Coming Soon

    Tools to Care for Your Pet and
    Connect with Others!

    Be the First to Know.
    Notify Me