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Test Code UTHC Cannabinoids, Urine, LAB2141

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Specimen Requirements

For situations where chain-of-custody is required, a complete chain-of-custody protocol must be maintained when collecting and handling specimens.

 

Container/Tube:

Preferred: Random Urine Specimen

Specimen Volume: 0.5 mL from a random urine collection

Stability: Store in refrigerator if less than 24 hours. If need to store longer than 24 hours,

               freeze the specimen.  Specimens should be within the pH range of 5 – 8. Specimens

               with a pH outside this range should be adjusted to this range by the addition of 1N HCl

               or 1N NaOH before analysis.  Specimens should be at a temperature of 20 – 25°C

               before analysis.

Note: 1. A completed “Chain-of-Custody Form” is required when processing a

              chain-of-custody specimen.

           2. Presence of detergents or bleach in specimen may interfere with assay.

Reference Values

Not detected (cutoff <50 ng/mL)

Useful For

Cannabinoid testing is used in the diagnosis and treatment of cannabinoid overdose.

Day(s) Test Set Up

Monday through Sunday

Methodology

Enzymatic

Note: This is a screening test only. No confirmation will be done unless it is specifically ordered.

Test Classification and CPT Coding

80349