Skip directly to search Skip directly to A to Z list Skip directly to page options Skip directly to site content

NIOSHTIC-2 Publications Search

Search Results

Urinary Creatinine Measurement Using a Vitros 250 Chemistry Analyzer Compared with the Jaffe Method.

Authors
Knecht-EA; Krieg-EF; Clark-JC; Kesner-JS
Source
Clin Chem 2002 Jul, 48(Suppl 6):A55
NIOSHTIC No.
20023557
Abstract
Creatinine forms in muscle as a waste product from creatine and phosphocreatine, and is excreted in urine at relatively constant rates. This allows creatinine excretion to be used as a check for the completeness of 24-hr urine collections, and to normalize, for urine flow rate, urinary concentrations of endogenous and exogenous substances primarily excreted by renal filtration. Because urinary creatinine levels are 10-50 fold higher than those measured in serum, urine samples are typically diluted prior to creatinine analysis. The Vitros 250 chemistry analyzer (Ortho Clinical Diagnostics, Rochester, NY, USA) measures creatinine using a single-slide enzymatic method comprised of a dry, multilayered analytical element coated on a polyester support. The Vitros employs three levels of standard to calibrate creatinine. The highest standard (17 mg/dL) corresponds to 340 mg/dL for urine diluted 20-fold, the dilution recommended by Ortho as a basis for reference accuracy.
Keywords
Muscles; Urinalysis; Sampling; Sampling-methods; Urine-chemistry; Models
CODEN
CLCHAU
Publication Date
20020730
Document Type
Abstract; Conference/Symposia Proceedings
Fiscal Year
2002
NTIS Accession No.
NTIS Price
ISSN
0009-9147
NIOSH Division
DART
Priority Area
Research Tools and Approaches: Exposure Assessment Methods
Source Name
Clinical Chemistry, International Journal of Laboratory Medicine and Molecular Diagnostics
State
OH
TOP