Home
HelpTest ID FBEN Benzene, Occupational Exposure, Blood
Method Name
Headspace Gas Chromatography/Flame Ionization Detection (GC-FID)
Reporting Name
Benzene, BloodSpecimen Type
WB Sodium HeparinSpecimen Required
Draw blood in a green-top (sodium heparin) tube(s) and send 20 mL in two tubes of sodium heparin whole blood refrigerated. Blood should be drawn at end of shift. Tubes should be filled to prevent loss of volatile compound into headspace.
Specimen Minimum Volume
2.5 mL (in two tubes)
Specimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| WB Sodium Heparin | Refrigerated (preferred) | 14 days | |
| Frozen | 365 days |
Reference Values
Units: mg/L
Normal (unexposed population):
None detected
Exposed (end-of-shift):
Blood benzene concentrations of greater than 0.1 mg/L correlate with exposure to greater than 10 ppm benzene in air.
Toxic:
Blood benzene concentrations greater than 0.90 mg/L have been observed in fatal cases of benzene exposure.
Day(s) Performed
Monday through Sunday
Performing Laboratory
Medtox Laboratories, Inc.CPT Code Information
84600
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| FBEN | Benzene, Blood | 9330-2 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| Z1153 | Benzene | 9330-2 |