Effective Use of A Veterinary Medical Diagnostic Laboratory

CHAPTER 29 Effective Use of A Veterinary Medical Diagnostic Laboratory



Veterinary medical diagnostic laboratories commonly offer a variety of tests in areas such as pathology and histology, serology and immunology, virology, bacteriology, mycology, parasitology, endocrinology, toxicology, molecular diagnostics, nutrition, and immunohistochemistry. These subunits within the diagnostic laboratory have the capabilities of testing for a variety of infectious organisms and substances by using highly specific and sensitive analytical instruments and techniques. Diagnostic personnel within the diagnostic laboratory work together to fine-tune the diagnostic approach to a case to maximize the use of the submitted samples with the goal to achieve a successful outcome—a diagnosis. Additionally, many veterinary medical diagnostic laboratories have close established contacts and working relationships with clinical experts present in associated veterinary teaching hospitals. This close working relationship helps the diagnosticians narrow down or sometimes expand the list of potential problems that might exist in the case at hand.



Getting Started


A veterinarian’s first contact with a veterinary medical diagnostic laboratory should be via the telephone (Box 29-1). In most veterinary medical diagnostic laboratories, there is a section head who oversees each unit within the laboratory. Section heads are generally veterinarians with advanced degrees (e.g., MS, PhD, board certification) in their specialty area. Most diagnostic laboratories have a daily consulting pathologist who triages the incoming telephone calls and cases. The pathologist can decide to consult directly with the caller or can transfer the call to the appropriate section within the diagnostic laboratory.



Veterinarians who call diagnostic laboratories are often seeking advice on cases, and questions can range from discussion regarding differentials, appropriate sample collection and submission, interpretation of results, to treatment options for the affected patient(s). Good communication in the early stage of a case between the veterinary practitioner and the laboratory personnel is one of the most useful tools in a case workup and will almost always guarantee proper sample collection and accurate selection of initial tests. The often-mentioned statement, “Laboratories run tests, veterinarians make diagnoses,” says it all. Consulting with laboratory personnel to determine the laboratory’s capabilities, costs of analyses, turnaround times, method of sensitivity (e.g., some laboratories may be able to test for a substance by a particular method, but the method may not be sensitive enough to provide reliable and accurate clinical interpretation), and interpretation abilities is critical so that everyone involved in the case is well informed. The consultant can help expand or narrow the focus of the investigation, so that the sample submitter does not ask “to test for everything” but rather focuses on some select differentials to target for testing.


During the telephone consult a veterinarian can pass along critical pieces of history regarding the case that may be too cumbersome to write on the accession forms. The telephone consult can also provide necessary information regarding packaging, preserving, and shipping the samples. Some laboratories are open for Saturday deliveries, but many are not. The veterinarian should know this in case samples arrive later than expected and are potentially perishable. Many laboratories have much of this information on Internet websites, but the veterinarian should contact the laboratory directly to make sure that all information on the website is current and correct. A list of the American Association of Veterinary Laboratory Diagnosticians (AAVLD)–accredited veterinary medical diagnostic laboratories located in the United States and Canada can be found at http://www.aavld.org/mc/page.do?sitePageId=33930&orgId=aavld (Table 29-1).


TABLE 29-1 AAVLD-Accredited veterinary medical diagnostic laboratories































































Arizona





Arkansas










California








Colorado Colorado State University
Veterinary Diagnostic Lab
Shipping Address:
Fort Collins, CO 80523
Mailing Address:
CSU DLab
Fort Collins, CO 80523

Phone: 970-297-1281
Fax: 970-297-0320
http://www.dlab.colostate.edu
Connecticut









Florida








Georgia






 










Illinois






 








 









Indiana






Iowa






Kansas






Kentucky






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Sep 11, 2016 | Posted by in SMALL ANIMAL | Comments Off on Effective Use of A Veterinary Medical Diagnostic Laboratory

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