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The Dexamethasone Suppression Test (DST), also referred to as the "low dose DST" or "overnight DST", is a screening test for Cushing's Syndrome.
The requesting clinician should give the patient a 1mg dexamethasone tablet with instructions to take it at 11 pm. (for outpatients: the tablet should only be taken Sunday to Friday evening, to ensure collection next day.)
The patient must present to the collection centre the following morning ( preferably before 10am ) and have a serum sample taken for cortisol analysis.
If there is any doubt do not send the patient away without documented consultation with a senior scientist. ( 9895 3548)
Endocrine consultation is suggested for "High Dose DST".
Dexamethasone levels will not be performed without consultation with Endocrinology and the Chemical Pathologist.
Cortisol < 50 nmol/L is considered normal and NOT consistent with Cushing's Syndrome.
If EMR is not available, Pathology results are available from Auscare. If you do not have an Auscare login,please complete attached form. https://pathology.easternhealth.org.au/handbook/downloads/Auscare%20access.pdf
Instruction on how to use Auscare - https://pathology.easternhealth.org.au/handbook/downloads/Auscare%20instructions.pdf
SPECIMEN COLLECTION MODULE (SCM) FAQs - CLICK HERE
CLICK HERE for a consent form to perform tests not covered by Medicare
TURN AROUND TIMES - When will my result be available?
CLICK HERE for Minimum Labelling Requirements
CLICK HERE for a printable Pathology request form
CLICK HERE for a Log sheet for recording Pathology results
"THE ART OF CCCCOLLECTION"
PLEASE CLICK HERE FOR THE PREFERRED ORDER OF DRAW
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