Reference Interval:
Reference Ranges
Clinical Chemistry 48:9 1460-1471, 2002
| | | Unexposed non-tobacco user
| Passive exposure
| Abstinent user for more than 2 weeks
| Active tobacco product use
| | Nicotine
| Less than 2 ng/mL
| Less than 2 ng/mL
| Less than 2 ng/mL
| 30-50 ng/mL
| | Cotinine
| Less than 2 ng/mL
| Less than 8 ng/mL
| Less than 2 ng/mL
| 200-800 ng/mL
| | 3-OH-Cotinine
| Less than 2 ng/mL
| Less than 2 ng/mL
| Less than 2 ng/mL
| 100-500 ng/mL
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| Interpretive Data: |
Drugs covered: nicotine, cotinine, 3-OH-cotinine.
Positive cutoff: 2 ng/mL
The absence of expected drug(s) and/or drug metabolite(s) may indicate non-compliance, inappropriate timing of specimen collection relative to drug administration, poor drug absorption, or limitations of testing. The concentration value must be greater than or equal to the cutoff to be reported as positive. Interpretive questions should be directed to the laboratory.
For medical purposes only; not valid for forensic use.
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| CPT Code(s): |
83887
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