14 days
High-pressure liquid chromatography/tandem mass spectrometry (LC/MS-MS)
Cause for Rejection: Nonserum or non-EDTA plasma specimen received. Room Temperature and Refrigerate specimen. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
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Measures levels of 17-hydroxypregnenolone, a steroid hormone precursor in adrenal and gonadal pathways. Useful in diagnosing congenital adrenal hyperplasia and other disorders of steroid biosynthesis, particularly 3β-hydroxysteroid dehydrogenase deficiency.
Serum or Plasma
1 mL
Red-top tube, gel-barrier tube, or lavender top (EDTA) tube
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Strictly frozen, requires own sample container
| Temperature | Period |
|---|---|
| Frozen | 730 days |