Low-dose ACTH stimulation testing in dogs suspected of hypoadrenocorticism.

Background: Low-dose ACTH stimulation testing would lower cost and may increase sensitivity for identification of partial ACTH deficiency.

Hypothesis: (1) The low-dose ACTH stimulation test will provide comparable results to the standard-dose ACTH stimulation test in dogs suspected of hypoadrenocorticism and (2) partial ACTH deficiency exists in dogs and can result in chronic, intermittent gastrointestinal signs.

Animals: Thirty-one client-owned dogs suspected of having hypoadrenocorticism.