Name: Cocaine, Urine Screen
Test Name: Cocaine, Urine Screen
Health Link Test Code: HCCOCMET
LIS Test Code: COCMET
CPT Code(s): 80307
Included In: Drug Screen, Urine (Stat)
Methodology: Enzyme Immunoassay
Qualitative test for benzoylecgonine.
Days Performed: Daily, 24 hours.
Stat In-Lab Turnaround Time: 1 hour.
Specimen: Random urine
Collection Container: Sterile screw cap container
If confirmation is requested on a specimen with a "screen positive" result, 10 mL of urine is needed for the confirmatory analysis.
Collection Volume: 25 mL
Pediatric Collection Volume: 10 mL
Sample Analyzed: Urine aliquot
Testing Volume: 2 mL
Pediatric Testing Volume: 0.5 mL
Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location.
This is a qualitative screening test. Results will be reported as "not detected" or "screen positive".
This is a screening test. Results are to be used for medical purposes only.
A cut-off value of 300 ng/mL is used to determine whether cocaine and its metabolites are "screen positive". If screening test is reported as "screen positive", confirmation and identification can be made (at additional charge) by a reference lab. Please submit an add-on order within 7 days of collection if confirmatory testing is needed.
Cocaine is rapidly metabolized in the human body to benzoylecgonine, which this method will detect. The half-life of benzoylecgonine is relatively long, on the order of 6 hours, and the metabolite may appear in the urine for days. Thus, the presence of benzoylecgonine is solid proof of past use, but the timing of the past use cannot be inferred from the urinalysis alone. (Karch, SB., Karch's Pathology of Drug Abuse, Third Edition, 2002; pg.65)