Toluene Exposure, Urine Test (4513U)
| Analysis Code |
4513U |
| Test Name |
Toluene Exposure, Urine |
| Test Includes |
Creatinine [Colorimetry], o-Cresol (Creatinine Corrected) [GC], o-Cresol [GC] |
| Compound Synonym(s) |
Toluene Metabolite |
| Purpose |
Occupational Exposure Monitoring, ACGIH/BEI |
| Category |
Metabolic Marker, Biological Marker (Renal), Environmental/Occupation Toxin |
| Method(s) |
Colorimetry (C)
Gas Chromatography (GC) |
| Specimen Requirements |
6 mL Urine |
| Transport Temperature |
Refrigerated |
| Specimen Container |
Plastic container (preservative-free) |
| Special Handling |
Samples preserved with Benzoic Acid are unsuitable for analysis. Preservative-free Urine samples are recommended. |
| Light Protection Required |
Not Required |
| Stability |
Room Temperature: 7 day(s)
Refrigerated: 7 day(s)
Frozen (-20 °C): 6 month(s) |
| Rejection Criteria |
None |
| Day(s) Test Set-up |
[Colorimetry] Monday-Saturday 2nd Shift 1 day
[GC] Tuesday Thursday 4 days |
| Suggested CPT Code |
[Colorimetry] 82570
[GC] 84600 |
Reflex Testing
(when required, addl' fee may apply) |
6022U - Specific Gravity Confirmation, Urine |
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