When is this performed?

  • To monitor the adequacy of steroid replacement in conditions like hypopituitarism and Addison`s disease
  • To monitor the adequacy of drug control of Cushing`s syndrome

What does the test involve?

  • The taking of blood samples to measure cortisol level.

Are there any side-effects?

  • Usually none

How long does the test take and is admission to hospital required?

  • The test takes about 8 hours 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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