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Test ID VLTU Volatile Screen, Random, Urine

Useful For

Detecting the presence of acetone, methanol, isopropanol, or ethanol in urine with subsequent quantitation

Method Name

Headspace Gas Chromatography-Flame Ionization Detector (HSGC-FID)

Reporting Name

Volatile Scrn, U

Specimen Type

Urine


Advisory Information


For best clinical correlation either VLTS / Volatile Screen, Serum or VLTB / Volatile Screen, Blood is recommended.



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.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Refrigerated (preferred) 14 days
  Frozen  28 days
  Ambient  24 hours

Reference 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

Day(s) and Time(s) Performed

Monday through Friday; Varies

Performing Laboratory

Mayo Clinic Laboratories in Rochester

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

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. This test has not been cleared or approved by the U.S. Food and Drug Administration.

NY State Approved

Yes

Testing Algorithm

This test includes analysis of methanol, ethanol, isopropanol, and acetone.

Forms

If not ordering electronically, complete, print, and send a Therapeutics Test Request (T831) with the specimen.