Tobacco
11 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
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Measures nicotine and cotinine in blood. Confirms smoking or second hand exposure.
Plasma, Whole Blood or Serum
1 mL
Lavender-top (EDTA) tube, green-top (heparin) tube or red-top 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 |
|---|---|
| Room temperature | 14 days |
| Refrigerated | 14 days |
| Frozen | 14 days |