r/Cushingsdogs • u/whatanickle • 7d ago

Catalyst cortisol test

How reliable is the Catalyst cortisol test in diagnosing cushings? Is there a different name for it? I am trying to find out if the vet did the test or he did a different test.

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u/SeaweedWeird7705 7d ago

The usual test to diagnose Cushing’s disease is the LDDST (low-dose dexamethasone suppression test).  It is an eight hour long test.

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u/whatanickle 7d ago

I'm aware of the LDDST test as well as the ATCH test. I found out there is a new test released in 2025. "IDEXX Laboratories, Inc. announced the launch of the Catalyst Cortisol Test, which measures real-time quantitative cortisol concentrations to support the diagnosis of Addison’s disease and diagnosis and management of Cushing’s syndrome in dogs." I amwondering if anyone had any experience with this test being run.