When is this performed?
- To clarify whether a patient has Cushing`s syndrome
What does the test involve?
- The administration of Dexamethasone at 6hrly intervals for 2 days and the taking of blood samples to measure cortisol and ACTH levels.
Are there any side-effects?
- Usually none
How long does the test take and is admission to hospital required?
- The test takes about 3 days and does not usually require admission
What should you tell your doctor?
- If you are taking steroid medication by any route: oral, topical, inhaled, injection
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