Purpose
Occupational Exposure Monitoring
Method(s)
Colorimetry (C)
High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)
Suggested CPT Code(s)
82570
83921
New York State Approval Status

Approved

Turnaround Time

8 days (If Positive: 12 days)

Test Includes
1 Creatinine Colorimetry (C) mg/L 100 Biological Marker (Renal)
2 2-Methylhippuric Acid High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L 5
3 2-Methylhippuric Acid (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat
4 3- and 4-Methylhippuric Acid High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L 5 Aromatic Solvents Metabolites
5 3- and 4-Methylhippuric Acid (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat
6 Methylhippuric Acids - Total Metabolites of Xylenes; Methylhippurates; Toluic acids High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L Aromatic Solvents Metabolites
7 Methylhippuric Acids - Total (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat

Test Also Known As
Organic Acids
Reflex Tests
Test Code Test Name
6022U Specific Gravity Confirmation, Urine
Specimen Type
Urine
Requested Volume
3 mL
Minimum Volume
1.1 mL
Special Handling
Collect sample at end of shift.
Acidify with 1.0 mL acetic acid per 100 mL urine.
Specimen Container
Plastic container (preservative-free)

Additional Collection Instructions

Transport Temperature
Refrigerated
Light Protection
Not Required
Rejection Criteria
Received Room Temperature.

Rejection criteria pertain to clinical specimen submissions only.

Stability
Room Temperature: 5 day(s)
Refrigerated: 30 day(s)
Frozen (-20 °C): 30 day(s)
1 Creatinine Colorimetry (C) mg/L 100 Biological Marker (Renal)
2 2-Methylhippuric Acid High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L 5
3 2-Methylhippuric Acid (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat
4 3- and 4-Methylhippuric Acid High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L 5 Aromatic Solvents Metabolites
5 3- and 4-Methylhippuric Acid (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat
6 Methylhippuric Acids - Total Metabolites of Xylenes; Methylhippurates; Toluic acids High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/L Aromatic Solvents Metabolites
7 Methylhippuric Acids - Total (Creatinine corrected) High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS) g/g Creat

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