http://www.endotext.org/protocols/protocols1/protocolsframe1.htm
http://jcem.endojournals.org/cgi/content/full/83/8/2726
http://www.emedicine.com/med/TOPIC42.HTM
http://www.nadf.us/index.htm
http://neuro.psychiatryonline.org/cgi/content/full/18/4/450
Hope these are OK. It has been a while since I have looked at them.
A good start : http://en.wikipedia.org/wiki/Adrenal_gland
About normal lab values, just a reference, (always look for your lab values):
Should test for ACTH (normal, 55-250 pmol/L or 6,0-76 pg/mL)
Plasmatic Cortisol:
Morning (8-12h): 139-690 nmol/L or 5-25 microgram/dL
12-20h: 138-414 nmol/L or 5-15 microgram/dL
20-8h:0-276 nmol/L or 0-10 microgram/dL
Free cortisol in urine: 55-193 nmol/24 h or 20-70 microgram/24 h
For cushing should test for plasmatic cortisol at 8 in the morning or free cortisol in 24 h urine, after taking 1 mg of dexametasone at midnight, if abnormal, must do more tests: Abnormal suppression of the cortisol in response of dexametasone intake (48 h test....)
Other tests:
DHEA in urine
Aldosterone (plasma)
Sodium
Potassium
Renin (plasma)
Response to cortisol 60 min after taking ACTH (for addison), ......................
Catecholamines (for Pheochromocytoma) in plasma and urine (http://en.wikipedia.org/wiki/Pheochromocytoma)