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Laboratory

Exult Diagnostics, Dr. Lal PathLabs, Metropolis Labs, Oncquest Labs, Pathkind Labs

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CORTISOL SUPPRESSION BY DEXAMETHASONE, OVERNIGHT HIGH DOSE

 1100 1680

EX0408      CORTISOL SUPPRESSION BY DEXAMETHASONE, OVERNIGHT HIGH DOSE
Specimen: Day 1: 2 mL (1 mL min.) serum from 1 SST. Draw baseline Cortisol sample at 8 am. Administer tablet 4 mg Dexamethasone orally at 11 pm at night. Day 2: Draw 2nd specimen at 8 am next morning. Both containers must be marked with time and date drawn, and submitted with one test request form. Ship refrigerated or frozen.
Stability:
Room Refrigerated Frozen
8 hrs 48 hrs 2 weeks
Method: Chemiluminescent Immunoassay
Comment: The patient should not be on steroid medication.
Report: Contact us to know the TAT.
Usage: Overnight dexamethasone suppression test checks the effect of dexamethasone on cortisol levels in the blood. In patients suffering from Cushing’s syndrome, cortisol levels stay very high after dexamethasone is administered. This test is also used for differential diagnosis of ACTH secreting pituitary adenoma from an ectopic ACTH source.
Doctor Specialty: Endocrinologist
Disease: Disorders of Adrenal Gland
Components:
Courier Charges: 0.00
Home Collection: Available (*T&C Apply)
Department: Biochemistry
Pre Test Information: Patient to give fasting baseline sample at 8 am. Take 4 mg tablet Dexamethasone orally at 11 pm the same night. Give a second sample next morning at 8 am. The patient should not be on steroid therapy.