Resting cortisol concentrations in dogs presenting to a university teaching hospital with collapse

Background The relationship between collapse and a diagnosis of hypoadrenocorticism is not well understood in dogs. Hypothesis To assess the prevalence of episodes of collapse in dogs screened for hypoadrenocorticism, and to assess the prevalence of confirmed hypoadrenocorticism in dogs presenting with reported collapse. Animals Seventy‐three client‐owned dogs with resting cortisol concentrations were measured and presented to a University teaching hospital for collapse. Methods Retrospective review of medical records of dogs at a single center. Results The prevalence of episodes of collapse in dogs that had a resting cortisol measurement was 73/856 (8.5%; 95% confidence interval [95% CI], 6.7%‐10.6%). Resting cortisol concentration was