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19894 DHEA
Test CodeDHEA
Preferred Specimen
0.5 mL frozen serum collected in a red-top tube (no gel)
Patient Preparation
Overnight fasting is preferred
Minimum Volume
0.3 mL
Other Acceptable Specimens
Frozen plasma collected in: EDTA (lavender-top) tube, EDTA (royal blue-top) tube, sodium heparin (green-top) tube, or lithium heparin (green-top) tube
Instructions
Specify age and sex on test request form
Transport Container
Plastic screw-cap vial
Transport Temperature
Frozen
Specimen Stability
Room temperature: 6 hours
Refrigerated: 72 hours
Frozen: 90 days
Refrigerated: 72 hours
Frozen: 90 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Serum separator tube (SST)
Methodology
Chromatography/Mass Spectrometry
Setup Schedule
Set up: Mon-Fri; Report available: 3-7 days
Clinical Significance
DHEA is a weakly androgenic steroid that is useful when congenital adrenal hyperplasia is suspected. It is also useful in determining the source of androgens in hyperandrogenic conditions, such as polycystic ovarian syndrome and adrenal tumors.
