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PubMed2004

Laboratory procedures.

The main foundation to veterinary medicine is the availability of laboratory tests. These tests may be performed in-clinic or at diagnostic laboratories. In-clinic testing is advantageous in producing quick results, but demands sound technical ability, basic equipment,and access to some routine and special reagents. Laboratory-based testing can back up those routine techniques that mayor may not be available at the clinic level as well as provide specialized testing. The knowledge of commercially available diagnostic services is important as well as preparation and proper shipping of samples for accurate determinations.

Animal Diseases↗
PubMed1987

Diagnostic laboratory procedures in infectious diseases.

Useful diagnostic information can be provided by the microbiology laboratory in a variety of infectious diseases. It is important to obtain an appropriate specimen and to provide the laboratory with relevant information. The value and limitations of in vitro susceptibility testing are discussed.

Bacterial Infections↗
PubMed2003

Training common marmosets (Callithrix jacchus) to cooperate during routine laboratory procedures: ease of training and time investment.

The first author trained 12 laboratory-housed common marmosets (Callithrix jacchus) in pairs to assess the practicality of positive reinforcement training as a technique in the management of these nonhuman animals. Behaviors taught were (a) target training to allow in homecage weighing and (b) providing urine samples. Between 2 to 13, 10-minute training sessions established desired behaviors. Training aggressive animals only after they had been fed eliminated aggression during training. Trained animals proved extremely reliable, and data collection using trained animals was considerably faster than collection using current laboratory techniques. The results suggest that positive reinforcement training is a practical option in the management of laboratory-housed marmosets.

Animal Husbandry↗
PubMed2003

Laboratory procedures for the diagnosis of gastrointestinal tract diseases of dogs and cats.

An increasing number of laboratory tests are available for diagnosis of gastrointestinal tract diseases in dogs and cats. Use of these tests can lead to more accurate and rapid diagnoses. This review discusses laboratory tests, both new and old, and the role they currently play in the evaluation of animals presented with gastrointestinal problems. A minimum database helps assess the severity of the disorder, detect extra-gastrointestinal causes of problems and assists in formulating diagnostic and therapeutic plans. Faecal examination remains one of the most important diagnostic procedures in the investigation of gastrointestinal problems. Zinc sulphate faecal flotation is an excellent routine screening technique for helminth and protozoal infections, including giardiasis. Rectal cytology can assist in the diagnosis of large bowel disorders. Interpretation of faecal immunodiagnostic tests is hampered by insufficient knowledge of test sensitivities and specificities. Routine faecal cultures are not warranted and faecal occult blood tests are rarely indicated. Serum tests for gastric inflammation are now under development. The serum trypsin-like immunoreactivity test remains the gold standard technique for the diagnosis of exocrine pancreatic insufficiency. Breath hydrogen tests can be helpful in assessing the functional relevance of mild abnormalities in small-bowel biopsy specimens. Subnormal concentrations of serum cobalamin appear to be more specific indicators of gastrointestinal disease in cats than in dogs. Tests for small intestinal bacterial overgrowth remain controversial and assessment of gastrointestinal permeability has yet to prove its value in the diagnostic assessment of companion animals with gastrointestinal problems. Faecal alpha1-protease inhibitor shows promise for the diagnosis of protein-losing enteropathy.

Journal Article↗