Your ACTH is twice over the normal range. We are in the
seasonal rise so Dedona’s ACTH will go even higher. Your vet is
right suggesting you increase the pergolide for this part of the
year. You can have some capsules made that are 1.5 mgs so you give
one pill during the rise. I don’t think you’ll ever know if the barn
staff is causing the problem. IF Sedona was mine, I would err
on the side of caution and increase her pergolide for the rise. Is
there a barn mate you trust that visits his/her horse regularly that you could
trust to give your mare her medicine? Just thinking out
loud...........