Test Overview
Clinical Utility
This assay is used for the detection of nicotine and cotinine in urine to determine the tobacco exposure status of the individual. Nicotine has a short half-life of approximately forty minutes; its presence may indicate recent tobacco exposure. Cotinine, the major nicotine metabolite, has a half-life of 24 hours and is detectable for several days after cessation of tobacco exposure.
Method
Liquid chromatography-tandem mass spectrometry (LC-MS/MS)
Result Included
Nicotine; Cotinine
Aliases/Synonyms
Cotinine
Specimen
Specimen Type
Urine (Random)Containers
Collection Containers
Sterile Container
Volume
Sample Volume
1 mL
Minimum Volume
0.5 mL
Collection & Handling
Handling Information
Store and send cold or frozen.
Stability
| Ambient | Refrigerated | Frozen |
|---|---|---|
| 72 hours | 14 days | 30 days |
Performance & Interpretation
Turnaround Time
8 days
Results
Name
Units
Reference Range
Conversion
-
Nicotineng/mLSmokers: 200 - 700
Non-smokers: ≤17 -
Cotinineng/mLSmokers: 300 - 1300
Non-smokers: ≤20
Comment
Individuals exposed to second-hand or passive tobacco smoke may demonstrate concentrations of nicotine and cotinine greater than those indicated for non-smokers.
Referral Location
Out-of-Country
Interface & Setup
HL7 Interface Codes
| Order Code | Result Name | Result Codes | Units |
|---|---|---|---|
| NICOT | NICOTINE, URINE | 62799 | ng/mL |
| COTININE, URINE | 62800 | ng/mL |
Test Version
Last Updated
2023-01-26