Vitamin H, Biotin
11 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
0.05−0.83 ng/mL
DO NOT use Gel-barrier tube
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Biotin level. Often checked in metabolic evaluations.
Serum or Plasma
1 mL
Red-top 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.
Transfer separated serum or plasma to a plastic transport tube. Include the patient's age on the test request form.
| Temperature | Period |
|---|---|
| Room temperature | 3 days |
| Refrigerated | 3 days |
| Frozen | 14 days |
| Freeze/thaw cycles | Stable x3 |