Hippuric Acid and Methylhippuric Acid, Urine

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

7 days (If Positive: 12 days)

Test Includes


1	Creatinine		Colorimetry (C)	mg/L	100	Biological Marker (Renal)
2	Hippuric Acid	Benzoylaminoacetic acid; Hippurate; N-Benzoylglycine; Toluene Metabolite	High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/L	0.02	Aromatic Solvents Metabolites
3	Hippuric Acid (Creatinine corrected)		High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/g Creat
4	2-Methylhippuric Acid		High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/L	0.005
5	2-Methylhippuric Acid (Creatinine corrected)		High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/g Creat
6	3- and 4-Methylhippuric Acid		High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/L	0.005	Aromatic Solvents Metabolites
7	3- and 4-Methylhippuric Acid (Creatinine corrected)		High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/g Creat
8	Methylhippuric Acids - Total	Metabolites of Xylenes; Methylhippurates; Toluic acids	High Performance Liquid Chromatography/ Tandem Mass Spectrometry (LC-MS/MS)	g/L		Aromatic Solvents Metabolites
9	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

Compliance Statement

This test was developed and its performance characteristics determined by NMS Labs. It has not been cleared or approved by the US Food and Drug Administration.

Sample 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.

Sample 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 sample submissions only.

Stability

Room Temperature: 5 day(s)
Refrigerated: 30 day(s)
Frozen (-20 °C): 30 day(s)

The CPT Codes provided in this document are based on AMA Guidelines and are for informational purposes only. NMS Labs Does not assume responsibility for billing errors due to Reliance on the CPT Codes listed in this document.

*The information contained in this document represents database configurations, as they will appear on the effective date listed above.