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  • Ataxia is a “lack of order”, or incoordination, within the nervous system, resulting in an abnormal gait in which the cat may be very unsteady on her feet.

  • The word "ataxia" comes from two roots: "a" meaning "lack" and "taxia" meaning "order." So literally, ataxia is a "lack of order," or incoordination, within the nervous system.

  • Atenolol is primarily used to treat heart disease in cats and dogs and to lower blood pressure. It is a beta1-blocking agent. Atenolol decreases the heart’s need for blood and oxygen and therefore reduces the amount of work the heart must do. It also helps the heart beat more regularly.

  • Atlantoaxial (AA) luxation is a condition in which instability, or excessive movement, is present between the first two vertebrae within the neck. This spinal disorder is most commonly seen in young, small breed dogs, such as Toy Poodles, Miniature Poodles, Yorkshire Terriers, Pomeranians, and Chihuahuas. Less commonly, however, large breed dogs and even cats can be affected.

  • Atrial fibrillation describes very rapid contractions, or ‘twitching’, of the heart muscle, confined to the atria, or the top chambers. Most of the time, atrial fibrillation in cats occur secondary to heart disease.

  • Atrial fibrillation describes very rapid contractions or twitching of the heart muscle, specifically in the atria. Most of the time, atrial fibrillation in the dog occurs secondary to heart disease. Sometimes, in large breed dogs, atrial fibrillation will occur as a primary heart problem.

  • There are four chambers in the cat’s heart - two top chambers (the atria) and two bottom chambers (the ventricles). There are valves that separate the top chambers from the bottom chambers. When the AV valves are healthy, they act to prevent the backflow of blood from the ventricles to the atria during contraction of the heart.

  • AV valve dysplasia describes a developmental malformation of the mitral or tricuspid valve, and may be referred to by the specific valve that is affected.

  • Atropine sulfate is used in the eye to dilate the pupil. It may also be used to control pain in the eye due to corneal and uveal disease and in treating secondary glaucoma.

  • At first glance, the Aussie Cattle Dog looks like a commoner from the streets of Sydney. On closer inspection, you can see in his face an uncommon intensity of purpose, a true sense of self, and a keen intelligence. This is no ordinary dog; all of the romance of the Australian outback seems embodied in this diamond-in-rough.

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