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HelpTest Code VLTU Volatile Screen, Random, Urine
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Reporting Name
Volatile Scrn, USpecimen Type
UrineOrdering Guidance
For best clinical correlation, the recommended tests are either VLTS / Volatile Screen, Serum; or VLTB / Volatile Screen, Blood.
Specimen Required
Supplies: Urine Tubes, 10 mL (T068)
Container/Tube: Plastic, 10-mL urine tube
Specimen Volume: 10 mL
Collection Instructions:
1. Collect a random urine specimen.
2. No preservative is required.
Reject Due To
All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Urine | Refrigerated (preferred) | 14 days | |
| Frozen | 28 days | ||
| Ambient | 24 hours |
Specimen Minimum Volume
1 mL
Day(s) Performed
Monday through Saturday
Specimen Retention Time
2 weeksReport Available
1 to 2 daysReference Values
Methanol:
Not detected (Positive results are quantitated.)
Cutoff concentration: 10 mg/dL
Toxic concentration: ≥10 mg/dL
Ethanol:
Not detected (Positive results are quantitated.)
Cutoff concentration: 10 mg/dL
Isopropanol:
Not detected (Positive results are quantitated.)
Cutoff concentration: 10 mg/dL
Toxic concentration: ≥10 mg/dL
Acetone:
Not detected (Positive results are quantitated.)
Cutoff concentration: 10 mg/dL
Toxic concentration: ≥10 mg/dL
Useful For
Detecting the presence of acetone, methanol, isopropanol, or ethanol in urine with subsequent quantitation
Testing Algorithm
This test includes analysis of methanol, ethanol, isopropanol, and acetone.CPT Code Information
80320
G0480 (if appropriate)
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| VLTU | Volatile Scrn, U | 24350-1 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 8826 | Volatile Scrn, U | 12983-3 |
| 30904 | Methanol, U | 5695-2 |
| 30905 | Ethanol, U | 5645-7 |
| 30906 | Acetone, U | 5570-7 |
| 30907 | Isopropanol, U | 9434-2 |
| 34378 | Chain of Custody | 77202-0 |
Forms
If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.