Sorry for any confusion. The testing would be to confirm diagnosis, not to do the ACTH stimulation test. I talked with the ICM. They do not automatically go with the first vet's diagnosis, and will evaluate the test results to date and then determine if they want to test anything independently before giving their own diagnosis.
If the ICM wants to do additional testing to confirm diagnosis, Yogi taking Vetoryl a week before could impact bloodwork. So, I decided to hold off on giving additional Vetoryl until the ICM confirms diagnosis this week (Yogi has had only 1 pill to date). If the ICM agrees it's Cushing's, I can start Vetoryl this week at the ICM's recommended dosage level, then schedule the ACTH test.
Angie