Library
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Antibody titers are sometimes needed to diagnose disease. Antibody titers reflect the level of antibody that the pet has made in response to exposure to a certain infectious organism. The titer is determined by sequentially diluting the serum and testing it against the organism in question. The more dilute the serum when it stops producing a positive reaction, the higher the concentration of antibodies present in the blood. Titers give support to a diagnosis, allowing more targeted treatment and more specific prognostic information, as well as identifying zoonotic disease (diseases transmissible between animals and humans).
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This handout discusses arthroscopy, the insertion of a telescope-like camera into a joint. The joints commonly examined and treated using this technique, along with the benefits and risks of this procedure, are outlined.
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Bile acids are compounds that are made in the liver and stored in the gall bladder and help with digestion of foods. The bile acid test is a very useful test that helps to determine if the liver is working properly. An abnormal bile acid test result indicates there is a problem in the liver, but it does not provide information about the cause, severity, or reversibility of the problem. Further testing is required to investigate the problem.
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Bone marrow is the soft material found in the central core of many bones. Bone marrow is commonly collected and examined when abnormalities are found in the circulating blood. The pathologist's report typically provides information about the health of the marrow, the types of cells present, whether abnormal cells are found, and other details that may help to explain the patient's illness.
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The fastest way to examine large numbers of white blood cells is to look at a buffy coat smear. One of the most important cells to look for in a buffy coat is called a mast cell. Mast cells play an important role in allergies and related conditions.
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Cerebrospinal fluid is a clear, colorless fluid found in the brain and spinal cord. The collection of CSF is usually indicated when a pet shows clinical signs, such as seizures, incoordination, circling behavior, and neck or back pain, when no obvious cause is known. The veterinary pathologist will evaluate the sample for a total nucleated cell count, a red blood cell count, a total protein determination, and a concentration of the cells in the sample. The presence of bacteria or fungal organisms may be detected along with increased numbers of inflammatory cells, leading to a diagnosis of bacterial or fungal infection. Neoplastic cells may also be found, indicating an underlying tumor within the brain or spinal cord.
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Coagulation is the series of events that result in the formation of a clot. In the body, coagulation occurs after any injury to a blood vessel or tissue, in order to stop the bleeding. Certain diseases such as liver disease and rodenticide toxicity can affect the production of clotting factors.
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The complete blood count (CBC) assesses different parameters of the cells in the blood including total number, appearance, size, and shape. Red blood cells, white blood cells, and platelets comprise the cellular component of the blood.
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A Coombs test is used to test for a disease called immune-mediated hemolytic anemia (IMHA). IMHA is a condition in which the immune system breaks down or destroys red blood cells, leading to anemia. The test detects the presence of immunoglobulins (antibodies) on the surface of red blood cells.
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Cytology is a useful tool to often diagnose abnormal lumps on your pet's body as well as evaluation of fluid samples and tissue surfaces. It is relatively simple and inexpensive but can provide a lot of information. Depending on results, further tests may be indicated to best help your pet.
