Test Name: DHEA-S
Specimen Required Serum
Sample Volume (Maximum) 1ml
Sample Volume (Minimum) 0.5 ml
Sample Container Red-top tube/gel-barrier tube
Collection Separate the serum within 2 hours of collection.
Ensure complete clot formation has occurred and there
are no fibrin threads. Do not use lysed serum for testing
as it may give very high results.
Do not use contaminated / turbid samples for testing.
Process the sample on the same day.
Storage Instructions (Stability) 7 days at 2–8 °C
6months@ -20°C
Causes for Rejection Icterus
Hemolysis
Lipemia
Biotin
Presence of fibrin in the sample may lead to erroneous
results and hence centrifuge the sample only after
complete clot formation.
Lysed serum specimens may give falsely elevated
values.
Erroneous findings may be obtained from patients
receiving treatment for monoclonal antibodies or have
received them for diagnostic purposes.
Clinical Significance Used as an aid in the diagnosis of hirsutism and virilism.
In addition to a differential diagnosis of hirsutism and
virilism further indications for this parameter are all
forms of androgenisation, hyperprolactinemia, polycystic
ovarian syndrome and the exclusion of an androgen
producing tumor of the adrenal cortex.
Principle/Method ECLIA method.