Reference Interval:
| Drugs Covered and Cutoff Concentrations
| | Drugs/Drug Classes
| Screen
| Confirmation
| | Marijuana
| 30 ng/mL
| 5 ng/mL
| | Cocaine
| 30 ng/mL
| 20 ng/mL
| | Opiates
| 30 ng/mL
| 2 ng/mL
| | Phencyclidine
| 15 ng/mL
| 10 ng/mL
| | Amphetamines
| 30 ng/mL
| 20 ng/mL
| | Barbiturates
| 75 ng/mL
| 50 ng/mL
| | Methadone and metabolite
| 40 ng/mL
| 10 ng/mL
| | Benzodiazepines
| 75 ng/mL
| 20 ng/mL
| | Propoxyphene and metabolite
| 75 ng/mL
| 10 ng/mL
|
|
| Interpretive Data: |
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 at which the screening test can detect a drug or metabolite varies within a drug class. Specimens for which drugs or drug classes are detected by the screen are reflexed to a second, more specific technology (GC/MS and/or LC-MS/MS). 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.
|
| Note: |
Screen-positive specimens are automatically confirmed by GC/MS and/or LC-MS/MS; additional charges may apply.
|
| CPT Code(s): |
80101 x9 Screen; if positive, add appropriate code for drug confirmed: 82542 Marijuana; 82520 Cocaine; 83925 Opiates; 83992 Phencyclidine; 82145 Amphetamines; 82205 Barbiturates; 80154 Benzodiazepines; 83840 Methadone; 83925 Propoxyphene
|
Cross References: |
Pain Management (Drugs of Abuse 9 Panel, Serum or Plasma - Screen with Reflex to Confirmation/Quantitation)
|