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HelpTest Code VLTS Volatile Screen, Serum
Performing Laboratory
Mayo Clinic Laboratories in Rochester
Specimen Type
SerumAdditional Testing Requirements
If measurement of ethylene glycol is also needed, order ETGL / Ethylene Glycol, Serum in addition to this test.
Specimen Required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial for serum collected in red-top tubes only.
Specimen Volume: Full tube
Collection Instructions:
1. Do not use alcohol to clean arm. Use alternative such as Betadine to cleanse arm before collecting any specimen for volatile testing.
2. Avoid exposure of specimen to atmosphere.
3. Centrifuge serum gel tubes with 2 hours of collection but do not aliquot.
4. Centrifuge red-top tubes and aliquot serum in plastic vial within 2 hours of collection.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 14 days | |
| Frozen | 28 days | ||
| Ambient | 24 hours |
Reference Values
Methanol:
Not detected (Positive results are quantitated.)
Toxic concentration: ≥10 mg/dL
Ethanol:
Not detected (Positive results are quantitated.)
Toxic concentration: ≥400 mg/dL
Isopropanol:
Not detected (Positive results are quantitated.)
Toxic concentration: ≥10 mg/dL
Acetone:
Not detected (Positive results are quantitated.)
Toxic concentration: ≥10 mg/dL
Day(s) Performed
Monday through Saturday
CPT Code Information
80320
G0480 (if appropriate)
Report Available
1 to 2 daysReject Due To
| Gross hemolysis | OK |
| Gross lipemia | OK |
| Gross icterus | OK |