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Involuntary Muscle Trembling in Cats

Tremors in Cats

 

Tremors are involuntary, repetitive muscle movements that alternate between contraction and relaxation, usually involving either rapid or slow movements (twitching) of one or more body parts. The tremors can occur in any part of the body.

 

Symptoms and Types

 

Involuntary tremors may be seen in almost any part of the body in an affected cat. The tremors may be localized, in one area, or generalized throughout the body. Localized cases usually affect the head or hind limbs.

 

Causes

 

  • Idiopathic (unknown)
  • Genetic
  • Trauma or injury
  • Congenital - present at birth
  • As a side-effect of certain drugs
  • Severe weakness or pain
  • In concurrence with kidney failure
  • Lower than normal levels of glucose in the blood (hypoglycemia)
  • Toxicity - chemical or plant based
  • Inflammation
  • Nervous system disease

 

Diagnosis

 

Your veterinarian will perform a complete physical exam on your cat after taking a complete medical history, including a background history of the symptoms and the time of onset, and possible incidents that might have led to this condition. Routine laboratory examinations include a complete blood count, biochemistry profile, urinalysis and electrolyte panel.

 

If brain disease is the primary cause of the tremors, the laboratory tests are usually found to be normal. In metabolic diseases, the biochemistry profile may indicate lower than normal levels of glucose (hypoglycemia), lower than normal levels of calcium (hypocalcemia), and abnormal kidney functions.

 

Other diagnostic tests will include X-rays, computed tomography (CT-Scan), and magnetic resonance imaging (MRI), especially in cases where the pelvic limbs are affected. These tests may reveal abnormalities in the posterior portion of the spinal cord and vertebrae. In some animals, cerebrospinal fluid, or CSF, is also taken for further testing. The results will vary depending on the primary disease underlying the external symptoms.

 

 

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