Casandra
Casandra Test Code MC32738Version 1 (DRAFT)
Performing Lab
Ethyl Glucuronide Screen with Reflex, Random, Urine
Clinical Use
Order TestUse
Used for screening for drug abuse involving alcohol. The test begins with an immunoassay-based screen; if positive, a confirmatory test by LC‑MS/MS with quantification is reflexed at an additional charge.
Special Instructions
Not provided.
Limitations
Care should be taken in interpretation since fluid intake and biological factors may influence urine results. Potential for false‑positive or false‑negative results due to cross-reactivity or interference.
Test Details
New York Approved
Methodology
Immunoassay
Biomarkers
2 components
Screening ImmunoassayReflex LC‑MS/MS Confirmation • LC‑MS/MS
LOINC Codes
Order Codes
- 58375-7 - Ethyl glucuronide Ur Ql Scn
Result Codes
- 58375-7 - Ethyl glucuronide Ur Ql Scn
Result Turnaround Time
0-2 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Urine
Volume
5 mL
Minimum Volume
2.5 mL
Container
Plastic, 5 mL tube (Sarstedt Aliquot Tube, 5 mL, T914)
Collection Instructions
Collect a random urine specimen; no preservative.
Causes for Rejection
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | 28 days |
| Refrigerated | 28 days |
| Frozen | 28 days |