Pregnenolone (Two Specimens)
14 days
High-pressure liquid chromatography (HPLC)/tandem mass spectrometry
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Evaluates adrenal steroidogenesis by measuring pregnenolone response to ACTH.
Serum (preferred) or Plasma
1 mL each specimen
Red-top tube, gel-barrier tube, lavender-top (EDTA) tube, or green-top (heparin) 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.
This test does not require any special collection or pre-analytical handling. Follow routine specimen collection protocols.
| Temperature | Period |
|---|---|
| Frozen | 730 days |