Androstaner-3-one, DHT
14 days
High-pressure liquid chromatography (HPLC) with tandem mass spectrometry
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Potent androgen. Evaluated in hirsutism, androgen disorders, and prostate conditions.
Serum (preferred) or Plasma, Frozen
1 mL
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.
Separate serum or plasma from cells within one hour of collection. Send serum or plasma in plastic transport tube. Transfer specimen to a plastic transport tube before freezing. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
| Temperature | Period |
|---|---|
| Room temperature | 7 days |
| Refrigerated | 7 days |
| Frozen | 19 months |
| Freeze/thaw cycles | stable x6 |