Methylhippuric Acid, Urine Test (2994U)
| Analysis Code |
2994U |
| Test Name |
Methylhippuric Acid, Urine |
| Test Includes |
Creatinine [Colorimetry], Methylhippuric Acid (Creatinine corrected) [IC], Methylhippuric Acid [IC] |
| Compound Synonym(s) |
Methylhippurate |
| Purpose |
Occupational Exposure Monitoring, ACGIH/BEI (Xylene Exposure) |
| Category |
Biological Marker (Renal), Environmental/Occupation Toxin |
| Method(s) |
Colorimetry (C)
Ion Chromatography (IC) |
| Specimen Requirements |
4 mL Urine |
| Transport Temperature |
Refrigerated |
| Specimen Container |
Plastic container (preservative-free) |
| Special Handling |
None |
| Light Protection Required |
Not Required |
| Stability |
Room Temperature: Undetermined
Refrigerated: Undetermined
Frozen (-20 °C): Undetermined |
| Rejection Criteria |
None |
| Day(s) Test Set-up |
[Colorimetry] Monday-Saturday 2nd Shift 1 day
[IC] Monday Thursday 2 days |
| Suggested CPT Code |
[IC] 83921
[Colorimetry] 82570 |
Reflex Testing
(when required, addl' fee may apply) |
6022U - Specific Gravity Confirmation, Urine |
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