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Test Code VLTU Volatile Screen, Urine

Reporting Name

Volatile Scrn, U

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.

Method Name

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

Performing Laboratory

Mayo Medical Laboratories in Rochester

Specimen Type

Urine


Specimen Required


Supplies: Plastic, 10-mL urine tube (T068)

Specimen Volume: 10 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative.

Additional Information: Submitting less than 10 mL will compromise our ability to perform all necessary testing.


Specimen Minimum Volume

1 mL

Specimen Stability Information

Specimen Type Temperature Time
Urine Refrigerated (preferred) 72 hours
  Frozen  14 days
  Ambient  24 hours

Reject Due To

Hemolysis

NA

Lipemia

NA

Icterus

NA

Other

NA

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 Sunday; Varies

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 No LOINC Needed

Secondary ID

8826

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.