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TEST ID FBEN Benzene, Occupational Exposure, Blood

Reporting Name

Benzene, Blood

Specimen Type

WB Sodium Heparin


Specimen 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

Method Name

Headspace Gas Chromatography/Flame Ionization Detection (GC-FID)

Reject Due To

Hemolysis NA
Lipemia NA
Icterus NA
Other NA

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

Report Available

7 to 11 days

Specimen Retention Time

2 weeks

Performing Laboratory

Medtox Laboratories, Inc.

CPT Code Information

84600