IDEXX Total T₄ Thyroid Test Available on Catalyst Dx and Catalyst One Chemistry Analyzers in North America

WESTBROOK, Maine, July 23, 2015 — IDEXX Laboratories, Inc. (NASDAQ: IDXX) today announced the Catalyst Total T₄ Test is now available for both the IDEXX Catalyst Dx Chemistry Analyzer and the IDEXX Catalyst One Chemistry Analyzer in North America. The Catalyst Total T₄ Test enables veterinarians and technicians to provide clients with reliable and comprehensive results including thyroid function at the point of care. Veterinarians can add total T₄ to any Catalyst Dx or Catalyst One test panel, allowing for a comprehensive chemistry, electrolyte and total T₄ profile in one run with a single patient sample in approximately 15 minutes.

Total T₄ helps veterinarians more accurately diagnose and monitor thyroid disease, a common condition in both dogs and cats. The test can be used as the first part of a protocol to diagnose canine hypothyroidism and to monitor treatment. The test can help diagnose feline hyperthyroidism and comes with a greatly expanded upper range compared to current in-clinic offerings that is highly useful in feline thyroid cases.

“With the Catalyst Dx Chemistry Analyzer, I am able to provide more complete results for my clients at the time of their pet’s visit,” said Dr. Anita Greene, DVM, of Spirit Mountain Animal Hospital in Bullhead City, Ariz. “Thyroid disease is a relatively common disease in both cats and dogs, particularly in senior patients, and monitoring for it has become part of our routine protocol for senior care. The ability to include the Catalyst Total T₄ Test as part of a chemistry panel is invaluable to providing a higher standard of care for my clients and their pets.”

Hyperthyroidism (excessive production of active thyroid hormone) is the most common hormonal disorder in cats and, left undiagnosed and treated, can lead to severe cardiac and respiratory problems as well as increased anesthetic risk. In contrast, hypothyroidism (inappropriately low production of active thyroid hormones) in dogs is far more common. Identification and treatment are important; symptoms can include lethargy and dermatological problems.

“The Catalyst Total T₄ Test reflects IDEXX’s continued investment in the Catalyst Dx and Catalyst One analyzers to help veterinary practices provide real-time blood work results during the examination, while the pet owner is present,” said Jonathan W. Ayers, president and chief executive officer, IDEXX Laboratories. “The new Catalyst Total T₄ Test is one example of how a customer’s investment in our in-house analyzers increases in value over time.”

With this announcement, the Catalyst Total T₄ Test is available to Catalyst Dx customers. The test became available to Catalyst One customers in February 2015. The Catalyst Dx and Catalyst One analyzers are part of IDEXX’s comprehensive, integrated point-of-care and reference laboratory diagnostic solution. The test is available to customers online at idexx.com/order, by calling 1-888-79-IDEXX or through their IDEXX Veterinary Diagnostic Consultant.

About IDEXX Laboratories
IDEXX Laboratories, Inc. is a member of the S&P 500^® Index and is a leader in pet healthcare innovation, serving practicing veterinarians around the world with a broad range of diagnostic and information technology-based products and services. IDEXX products enhance the ability of veterinarians to provide advanced medical care, improve staff efficiency, and build more economically successful practices. IDEXX is also a worldwide leader in providing livestock and poultry diagnostic tests and tests for the quality and safety of water and milk. Headquartered in Maine, IDEXX employs more than 7,000 people and offers products to customers in over 175 countries. For more information about IDEXX, visit: www.idexx.com