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HelpTest Code LAB3083 Drug Screen, Urine
Performing Laboratory
St. Louis Children's Hospital Laboratory - Special Chemistry
Specimen Requirements
Patient Preparation: None
Collection Container/Tube:
Preferred: Clean, plastic screw-cap urine collection container with no preservatives
Acceptable: Any clean, plastic collection container, no preservatives
Specimen Collection Volume: 5.0 (minimum 1.0 mL) urine
Submission Container/Tube: If specimen is coming from outside facility aliquot a minimum of 1.0 mL of urine into a plastic, leak-proof, screw-capped tube for transport.
Special Instructions: None
Sample Rejection
Mislabled or unlabeled specimens
Urines collected with preservatives
Specimens collected with cotton balls/gauze, diapers or any absorbant material
Logistics
Test Availability: Monday-Sunday
Cut-off time: None, performed as received
Turnaround Time: Same Day; 90 minutes from receipt in performing lab
Reference Values
Reference Interval: None detected
For the list of compounds screened for and their limit of detection see "St. Louis Children's Hospital Drug Screen Limits of Detection".
You can find list of compounds screened and their limits of detection thru link above or under the Resources link on side of home page.
Critical Value: None established
Methodology
Liquid Chromatography/Tandem Mass Spectrometry (LC-MS/MS)
Limitations
- NA
Additional Information
FOR SLCH CORE LABORATORY USE ONLY
Lab Processing Instructions: DO NOT SPIN
Processed Volume: 5.0 mL (minimum 1.0 mL) urine
Analyte Stability:
| Specimen Type | Temperature | Time |
|---|---|---|
| urine (no preservative) | Ambient | NA |
| Refrigerated | 7 days | |
| Frozen | NA; completed specimens will be stored for 1 month |
Test Classification and CPT Code
G0482
Test Classification: This test was developed and its performance characteristics determined by St. Louis Children's Hospital Clinical Laboratory. It has not been cleared or approved by the U.S. Food and Drug Administration.
LOINC
NA
Last Reviewed
08/2025