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Test ID: HIPA    
Hippuric Acid, Urine

Reference Values Describes reference intervals and additional information for interpretation of test results. May include intervals based on age and sex when appropriate. Intervals are Mayo-derived, unless otherwise designated. If an interpretive report is provided, the reference value field will state this.

Reporting limit determined each analysis



 U.S. Population (10th – 90th percentiles, median)

 All participants:

            335 - 2370 mg/L, median:  1180 (n=22,245)


            495 - 2540 mg/L, median: 1370 (n=10,610)


            273 - 2170 mg/L, median 994 (n=11,635)


Hippuric Acid (g/L)

  Synonym(s): Hippurate; n-Benzoylglycine

  Normal in an unexposed population up to 1.6 g Hippuric Acid/L urine.


Hippuric Acid (Creatinine corrected) (g/g Creat)

  Synonym(s): Hippurate; n-Benzoylglycine

  Biological Exposure Index (ACGIH) for monitoring

  exposure to Toluene:

  1.6 g Hippuric Acid/g Creatinine measured in an end of shift specimen.


Specific Gravity Confirmation

   Physiologic range:  1.010-1.030.


Test Performed by:  NMS Labs

                              3701 Welsh Road

                              P.O. Box 433A

                              Willow Grove, PA  19090-0437