17 days
Mass spectrometry (MS)
Accredited Laboratory Partner
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Synthetic steroid. Can be measured during suppression testing or in therapeutic monitoring.
Serum (preferred) or Plasma
3 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.
Strictly frozen, requires own sample container
| Temperature | Period |
|---|---|
| Room temperature | 6 days |
| Refrigerated | 14 days |
| Frozen | 1 year |