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Blood Thickening in Cats

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Polycythemia Vera in Cats

 

Polycythemia vera is a blood disorder that involves abnormal blood thickening due to an increase of red blood cell production by the bone marrow. It is primarily seen in older cats.

 

Symptoms and Types

 

The following symptoms gradually appear but run a chronic course:

 

  • Weakness
  • Depression
  • Lack of appetite (anorexia)
  • Redness of skin (erythema)
  • Increased thirst and urination (polydipsia and polyuria)

 

Causes

 

Although the viscosity of the blood is due to an increased production of red blood cells by the bone marrow, the cause of this overproduction is currently unknown.

 

Diagnosis

 

You will need to give a thorough history of your cat’s health, including the onset and nature of the symptoms, to your veterinarian. He or she will then perform a complete physical examination, as well a biochemistry profile, urinalysis, and complete blood count (CBC). Blood testing will typically reveal an increase in red blood cell mass, and in about 50 percent of cats, an increased number of white blood cells (leukocytosis). 

 

To assess the function of the kidneys and cardiopulmonary systems, your veterinarian will conduct X-rays and abdominal ultrasounds. Echocardiography, meanwhile, is used to evaluate the cardiac functions. He or she will also take a sample of bone marrow and send it to a veterinary pathologist for further examination.

 

 

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