VOLATILES SCREEN

Components
Includes Ethanol, Isopropanol, Methanol, and Acetone

Specimen Required
Draw blood in a grey sodium fluoride tube. Send 1.0 mL whole blood (0.5 mL minimum) refrigerated in original tube. Do not open. Specimens in aliquot containers must be sealed immediately after transferring to minimize exposure to air.

Alternate Specimen
Whole blood: heparin; Serum: Red-top
Urine

Methodology
Gas Chromatography

Stability
Room Temperature: 48 hours; Refrigerated: 7 days; Frozen: Unacceptable

Reference Range
Ethanol Decision Level:   10 mg/dL  
Toxic:   >300 mg/dL  
Note: There is no toxic level for urine ethanol.
Isopropanol Decision Level:   10 mg/dL  
Toxic:   >40 mg/dL  
Lethal:   >150 mg/dL  
Methanol Decision Level:   10 mg/dL  
Toxic:   >20 mg/dL  
Lethal:   >50 mg/dL  
Acetone Decision Level:   10 mg/dL  
Toxic:   >50 mg/dL  
Acetone levels greater than 50 mg/dL may indicate severe isopropanol poisoning.

Performed
Sunday-Saturday

Turnaround Time1 day
Test CodeVOLAT
CPT-4 Code (s)
80320 (G0480)
LOINC Codes
Ethanol   5640-8  
Isopropanol   5667-1  
Methanol   9334-4  
Acetone   9425-0  

Warde
Medical
Laboratory