Hi, I was wondering if anyone knows whether the pre pill cortisol test can be done before 28 days or should it be the acth stimulation test done? My dog is booked in for a 14 day pre pill test but wasn’t sure if it’s too soon/not the right sort of test for that time frame? Hoping someone may be able to just confirm it’s the right test as I’m worrying about an incorrect result coming back due to the wrong test being done!

Thanks so much.