Nicotine and Metabolites, Serum or Plasma, Quantitative
Also known as: NICOTINESP
Use
This test is used to detect and monitor nicotine and cotinine in serum or plasma, which can be useful when a valid urine specimen cannot be obtained, such as in cases of anuria or dialysis. It evaluates recent use of nicotine-containing products, although it cannot definitively discriminate between passive and active exposure. It is useful for smoking cessation programs or compliance testing, as the absence of expected drug(s) or drug metabolite(s) could indicate noncompliance or other issues.
Special Instructions
For medical purposes only; not valid for forensic use. This test evaluates recent use of nicotine-containing products. The concentration value must be greater or equal to the cutoff to be reported as positive. Passive and active exposure cannot be discriminated definitively.
Limitations
This test cannot distinguish between the use of tobacco and purified nicotine products. Factors like noncompliance, inappropriate specimen collection timing, or poor drug absorption may affect results. The cutoff concentration for detection is 5 ng/mL. For surgery qualification purposes, a cutoff of 10 ng/mL cotinine is frequently used.
Methodology
Mass Spectrometry
Biomarkers
LOINC Codes
- 3853-9
- 10365-5
Result Turnaround Time
1-5 days
Related Documents
For more information, please review the documents below
Specimen
Serum
Volume
4 mL
Minimum Volume
1 mL
Container
ARUP standard transport tube
Collection Instructions
Collect in plain red, green (sodium heparin), lavender (EDTA), or pink (K2EDTA).
Storage Instructions
Refrigerated.
Causes for Rejection
Plasma or whole blood collected in lt. blue (sodium citrate) or SST. Specimens exposed to repeated freeze/thaw cycles. Hemolyzed specimens.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 1 week |
| Refrigerated | 2 weeks |
| Frozen | 3 years |
