91558      Benzene, Whole Blood
Specimen:
  Collect: One 4 mL Gray Top

Also Acceptable
One 4 mL Lavender (EDTA) 
  Submit: 2 mL (Min:0.5 mL) Whole blood. Submit Refrigerated.  
  Stability: Ambient: Unacceptable; Refrigerated: 2 Week(s); Frozen: 21 Day(s); Incubated: Unacceptable 
Methodology: Gas Chromatography (GC) 
Performed: Varies 
Reported:  
CPT Codes:
84600
Interpretive Data:
General Reference Range : see comment mcg/mL