CORTISOL SUPPRESSION BY DEXAMETHASONE, OVERNIGHT HIGH DOSE

CORTISOL SUPPRESSION BY DEXAMETHASONE, OVERNIGHT HIGH DOSE

This test is used for differential diagnosis of ACTH secreting pituitary adenoma from an ectopic ACTH source.

  • Pre-test Information:

    Patient to give fasting baseline sample at 8 a.m. Take 4 mg tablet Dexamethasone orally at 11 p.m. same night. Give second sample next morning at 8 a.m . Patient should not be on steroid therapy.

  • Report Delivery:

    Daily