OBJECTIVE: To describe the 1 hour ACTH stimulation test characteristics, low-dose (1 meg) and high-dose (250 meg), in Filipinos. To determine whether there is a difference in the 30-minute and 60-minute stimulated cortisol value in the low-dose and the high-dose ACTH stimulation tests. To determine whether a baseline cortisol cut-off value can predict patients with adrenal insufficiency.METHODS: Of the 123 ACTH stimulation tests (83, low-dose, 40 high dose) performed from January 2004-August 2006, 111 tests were analyzed. Serum cortisol were extracted at baseline, then at 30 and 60 minutes after injection of corticotropin for both the high and low-dose test. Cortisol >18 mcg/dl before or after ACTH stimulation is suggestive of normal adrenal function. Cortisol _
Adrenocorticotropic Hormone