A few people asked what tests my endo ordered in order to find the root cause of my adrenal problems. The ones that are different to the normal lifter function, bone, urea etc. are
Heterophile antibody - a test for Epsten Barr Virus/glandular fever.
IGF-1 - IGF-1 may be used with other pituitary hormone tests, such as adrenocorticotropic hormone (ACTH), to help diagnose hypopituitarism.
ACTH - measures the level of the hormone in blood
Adrenal antibodies - self explanatory
Lyme serology - test for Lyme disease
Fasting gut hormones - a test to find out if there is a pituitary tumour
ACTH stim test - measuring the stress response of the adrenals to ACTH, which can assess the function of the adrenals.
Tests ordered by my GP prior to this based on a 24hr saliva test which showed 3 very low cortisol and very low (out of range) DHEA
DHEAS - a good test to measure adrenal function. DHEAS can be measured to help distinguish adrenocortical tumours (tumours in the cortex of the adrenal gland) from adrenal cancers, and adrenal hyperplasia (which may be congenitalor adult onset).
Aldosterone and renin ratio: can be used to test if people have poor adrenal function
24hr cortisol urine test - measures the total amount of cortisol produced in 24hrs. Not useful if you have peaks as these may normalise the cortisol lows.
I hope this is of some use for people.