DHEA Sulfate, LC/MS-MS (Endocrine Sciences)
Code:9031|CPT:82627|LOINC:2191-5
| Includes | DHEA-Sulfate, LCMS |
|---|
Analysis details
Methodology
- Liquid chromatography–tandem mass spectrometry (LC-MS/MS)
- Chemiluminescent immunoassay (CLIA)
Expected Turnaround Time
1 day
Special Instructions
- Avoid eating for 2–3 hours before the blood draw; water is allowed.
- With the ordering clinician’s approval, stop steroid and thyroid hormone medications 48 hours before collection.
- Refrain from strenuous exercise and significant emotional stress for 24 hours prior to collection.
- Do not smoke during the 3 hours before collection.
- Testing is performed at Endocrine Sciences; specimens may be stored for up to 90 days.
How to use
The DHEA Sulfate, LC/MS-MS (Endocrine Sciences) test—also known as dehydroepiandrosterone sulfate or DHEA‑S—assesses adrenal androgen output and helps distinguish an adrenal from an ovarian or testicular origin of androgen excess. It is used in the evaluation of hirsutism and virilization, including polycystic ovary syndrome, and in adrenocortical disorders such as congenital adrenal hyperplasia and adrenal tumors/carcinoma. The assay supports the workup of infertility and amenorrhea and aids in assessing disorders of sex development. DHEA‑S levels are generally low in Addison disease and are characteristically not elevated with hypopituitarism.
Limitations
Dehydroepiandrosterone sulfate (DHEA‑S) is an androgen found in both males and females that serves as a precursor convertible to more potent androgens (testosterone, androstenedione) as well as to estrogens. Its synthesis is regulated by adrenocorticotropic hormone (ACTH) and other pituitary signals, making it a useful indicator of adrenal function. Adrenal hyperplasia and adrenal tumors/carcinoma may raise DHEA‑S concentrations. Elevated levels can be clinically silent in men, whereas in women they are associated with amenorrhea and virilization. In pediatric populations, excessive production contributes to precocious puberty in boys and to virilization, hirsutism, and menstrual irregularity in girls.
| Unit | mcg/dL | ||||
|---|---|---|---|---|---|
| Reference interval |
Depends on your age | ||||
| Indications | Suspected androgen excess with assessment of adrenal androgen production, Source localization of androgen excess (adrenal versus ovarian or testicular), Evaluation of amenorrhea, Workup of female infertility, Assessment of virilizing features in women (e.g., hirsutism, voice deepening, male‑pattern alopecia, acne), Evaluation of ambiguous genitalia or other disorders of sex development in girls, Assessment of precocious puberty in boys |
Possible Causes of Abnormal Results
Increased levels
- dhea-s supplementation
- newborn period (physiologic)
Decreased levels
- aging
Specimen Requirements
| Specimen | Serum |
|---|---|
| Container | Gold/Tiger Top (SST, Gel Separator) |
| Volume | 0.2 mL (min 0.1 mL) |
| Storage Instructions | Room temperature, Refrigerated, Frozen |