Tag Archives: kidney disease

A day in the life of: Trent – Kidney Disease

Meet Trent, a gorgeous and very friendly 11 year old Domestic Short Hair cat. Trent visited us a few weeks ago after his owner Hayley noticed that he had been losing weight and the quality of his coat had been lacking.

In order to investigate Hayley’s concerns Dr Jenny decided that a senior check-up was in order. A senior check-up involves a thorough history and examination with a focus on issues that our senior cats are commonly affected by.  Our comprehensive examination includes a mobility assessment, dental health check, dietary assessment, parasite control review and a vaccination review.   The senior cat check-up also includes a full blood profile, blood pressure and urine testing all run in our state of the art in house laboratory.

Trent was an angel, he let us check his blood pressure without a fuss, we used a blood pressure cuff and a Doppler ultrasound to do this.  We made sure to use headphones so that Trent didn’t notice the noise at all. Blood pressure testing is extremely important as cats with high blood pressure have no clinical signs until they develop organ damage.  Sudden onset blindness is often the first sign we see.  Early detection and treatment can help prevent this, Luckily Trent’s blood pressure was normal.

We then went on to collect blood and urine samples from Trent, the blood test we ran measured his kidney enzymes, liver enzymes, thyroid hormone, glucose, and red and white blood cells.  The urine sample was to check urine concentration allowing us to assess kidney function, and to check for urinary tract infections which are common in our older cats.

 

After running these tests we found that Trent had early stage kidney disease, and this was what caused his weight loss and other symptoms such as changes to his coat.  Kidney disease can also cause increased thirst and increased urination – this is often what owners notice first.

Because of Trent’s vigilant owner we were able to detect the kidney disease at such an early stage that all Trent needed was a diet change to a special prescription kidney diet.  Trent actually quite liked his new diet, but don’t worry we have plenty of tips and tricks for cats that are more fussy.  In a few weeks we will follow up with Trent and recheck his blood and urine tests to make sure that he is improving with his treatment.

Image result for hills k/d cat Image result for royal canin renal cat

 

If your cat is 7 years of age or older, book in for their Senior Cat Check-up today, give us a call on (02) 6230 2223 or click HERE to book online now!

High blood pressure

 Hypertension is the medical term for high blood pressure, a silent killer of older cats.

 What causes hypertension in cats?

Hypertension is usually secondary to another disease. Kidney disease is the most common cause of hypertension but cats with adrenal gland tumours or treated for hyperthyroidism also develop high blood pressure at times. Sometimes no underlying cause is found.

Most cats with hypertension are older than 9 years of age.

What are the effects of hypertension?

Hypertension damages all body organs but we notice it most in:

  • the eyes. The small vessels in the retina break under pressure. The bleeding detaches the retina and the cat becomes blind.
  • the brain. Ruptured blood vessels cause ‘strokes’, fits, twitches or unusual behaviour
  • the kidneys. Increased blood pressure damages the delicate filtration system of the kidney.
  • the heart. The heart has to work harder to push the blood out into the body and the heart muscle thickens and becomes less efficient. Sometimes the heart goes out of rhythm or we hear a murmur with the stethoscope. Affected cats may show signs of heart failure such as breathlessness, lethargy, weakness or fainting.

How do we detect hypertension?

We measure the blood pressure of all cats over 9 years old as part of the regular seniors’ examination. We also check the blood pressure of all cats with kidney disease or hyperthyroidism, or with any signs of eye, brain or heart disease.

Most cats tolerate the cat sized cuffs we put on their arms. Some don’t like the feel of the gel or the sound of the amplifier we use to hear the pulse. We try to put them at ease so that we get an accurate reading.

How do we treat hypertension?

A daily dose of amlopidine as a fragment of tablet (Norvasc), or as chicken, fish, cheese or beef flavoured drops to put on the food, brings the blood pressure down rapidly.

After a week on amlopidine we recheck the blood pressure to see if it has come down to normal. If all goes well we recheck it every 3 months.

Sometimes other medications like benazepril (Fortekor or Vetace) are added in, particularly if we detect kidney disease.