Format

Send to

Choose Destination
See comment in PubMed Commons below
Mol Genet Metab. 2010 May;100(1):103-4. doi: 10.1016/j.ymgme.2010.01.006. Epub 2010 Jan 21.

Homogentisic acid interference in routine urine creatinine determination.

Author information

  • 1Biochemical Genetics Laboratory, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.

Abstract

We report the artifactual elevation of homogentisic acid (HGA) in urine from alkaptonuric patients after replacing the creatinine method (Jaffe reaction) in our laboratory with an automated enzymatic method. Samples with elevated HGA by GC-MS had lower creatinine values as determined by the enzymatic method than by the Jaffe reaction. The low creatinine values were due to interference by HGA in the enzymatic method. The enzymatic method is unsuitable for creatinine determination in urine of patients with alkaptonuria.

PMID:
20138792
DOI:
10.1016/j.ymgme.2010.01.006
[PubMed - indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center