A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
DEXAMETHASONE SUPPRESSION TEST
MessageDraw serum between 7:00 am - 9:00 am following the administration of 1mg Dexamethasone between the hours of 11:00 pm - midnight. This test is not for dexamethasone compliance. If compliance is desired, order DEXA (Dexamethasone).
Test Code
CPT Codes
82533
Includes
Cortisol
Preferred Specimen
Minimum Volume
0.5 mL
Other Acceptable Specimens
or 1 Green tube (Lithium heparin)
Instructions
Centrifuge for complete separation of plasma/serum and red cells within 2 hours. Aliquot plasma samples into a transfer tube. If testing cannot be completed within 48 hours, freeze.
Transport Temperature
Refrigerate
Specimen Stability
2-8ÂșC up to 2 days; Frozen samples are stable 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolyzed samples will be rejected.
Methodology
Immunoassay
Setup Schedule
M, Tu, W, Th, F, Sa, Su
Reference Range
<3 ug/dL
Click here for testing algorithm
Clinical Significance
This assay measures the cortisol level 8 hours following the administration of Dexamethasone. Used as an aid in the diagnosis of Cushing syndrome.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB2 (Chemistry, Beckman DxI)
Last Updated: April 25, 2023