If it's either high or low, you will get more tests.
Mine was high - so I was given 1mg dexamethasone to take in the evening, and the next morning my cortisol levels were checked. (Called the dexamethasone suppresion test). It's used to diagnose if you have cushing's syndrome. My cortisol was low in the morning.
"The dexamethasone suppression test (DST) is used to assess adrenal gland function by measuring how cortisol levels change in response to an injection of dexamethasone. It is typically used to diagnose Cushing's syndrome.
A low dose of dexamethasone suppresses cortisol in individuals with no pathology in endogenous cortisol production. A high dose of dexamethasone exerts negative feedback on pituitary ACTH-producing cells, but not on ectopic ACTH-producing cells or adrenal adenoma."
I never got the high dose dexa tets. My ACTH test was in range - maybe that's why..
I also had a CT done on my adrenals - and no tumors.
I also paid for an MRI of my pituitary gland.
I did check my cortisol levels several months later - and my cortisol had dropped to normal range.
If your cortisol is low - you may be prescribed low dose of cortisone. - If it's just slightly low - maybe using herbal supplements to support your adrenals may be good enough.
Are you 'spitting' 4 different times of the day? Sometimes your total cortisol will be fine, but you're producing higher amounts at the wrong times -for example you should be producing higher amounts in the early morning, and lower amounts in the evening - and that needs to be sorted out.
Post Edited By Moderator (Traveler) : 11/4/2015 4:03:59 PM (GMT-7)