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 # |
DHEA, (Dehydroepiandrosterone), Unconjugated
Test Code19894
Alias/See Also
LAB522
CPT Codes
82626
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
Transport tube
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
FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.
Setup Schedule
Mon-fri
Report Available
2-6 days
Reference Range
Adult
Pediatric
Males | 147-1760 ng/dL |
Females | |
Pre-Menopausal | |
Mid Follicular | 385-1143 ng/dL |
Surge | 345-2030 ng/dL |
Mid Luteal | 414-1295 ng/dL |
Post-Menopausal | 77-851 ng/dL |
Pediatric
1-11 months | ≤327 ng/dL |
1 year | ≤269 ng/dL |
2 years | ≤244 ng/dL |
3 years | ≤253 ng/dL |
4 years | ≤297 ng/dL |
5 years | ≤376 ng/dL |
6 years | ≤487 ng/dL |
7 years | ≤616 ng/dL |
8 years | 34-744 ng/dL |
9 years | 45-854 ng/dL |
10 years | 56-950 ng/dL |
11 years | 67-1041 ng/dL |
12 years | 78-1120 ng/dL |
13 years | 86-1176 ng/dL |
14 years | 90-1207 ng/dL |
15 years | 95-1241 ng/dL |
16 years | 103-1294 ng/dL |
17 years | 113-1360 ng/dL |
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.
Performing Laboratory
Quest Diagnostics Nichols Institute-San Juan Capistrano, CA |
33608 Ortega Highway |
San Juan Capistrano, CA 92675-2042 |