Phencyclidine (PCP)
                        Interpretation
- The clearance half-life of PCP averages 15 hours.
 - The presence of PCP > LOQ indicates exposure to PCP within 2 to 8 days prior to specimen collection.
 
Confirmation Tests:
Approximate Detection Times
| Phencyclidine | LOQ (ng/mL) | Detection Time* up to | 
|---|---|---|
| Phencyclidine | 25 | 8 days | 
 *These are approximate detection times for the drug or metabolites in urine. The actual detection time depends on dose, frequency of use, and individual metabolism.