24 %

Cortisol Suppression By Dexamethasone, Overnight Low Dose

132 Ratings

Rs 1,100 Rs 1,452

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Test Description not updated

Administer tablet 1 mg Dexamethasone orally at 11 pm at night. Draw 2 mL (1 mL min.) Serum from 1 SST at 8 am next morning. Ship refrigerated or frozen.



Overnight dexamethasone suppression test checks the effect of dexamethasone on cortisol levels in the blood. This is a screening test to document true hypersecretion of cortisol. Patients with Cushings syndrome of any cause will fail to suppress their cortisol secretion with a low dose of dexamethasone.


Patient to take tablet Dexamethasone orally at 11 pm at night and come for test next morning at 8 am. Patient should not be on steroid therapy.

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