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HelpTest Code DEXSPR Dexamethasone Suppression Test (DST)
Specimen Information
Collect specimens using standard laboratory procedures.
The physician provides the Dexamethadone dose to the patient and instructs them when to take it and when to have their blood drawn.
| Container | Specimen | Temperature | Collect Vol | Submit Vol | Min Vol | Stability |
| SST | Serum | Refrigerate | 4 mL | 0.75 mL | 0.5 mL | 5 Days |
| Lithium Heparin | Plasma | Refrigerate | 4 mL | 0.75 mL | 0.5 mL | 5 Days |
Reject Due To:
- Moderate or Marked Hemolysis
- Specimen unlabled or mislabeled.
Instrumentation / Method
Ortho Vitros 5600 / Chemiluminescence Immunoassay
Test Schedule / Analytical Time / Test Priority
Daily / 1 Day / Available STAT (Referred Testing)
Reference Range
Non-suppression: ≥ 1.8 ug/dL
Suppression (normal): < 1.8 ug/dL
CPT / LOINC / Order Code
| Meditech | Medent | LOINC | CPT |
| DEXSPR | DEXSPR | 47851-1 | 82533 |