Interference with the Jaffé method for creatinine following 5-aminolevulinic acid administration
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منابع مشابه
A solution to the problem of bilirubin interference with the kinetic Jaffé method for serum creatinine.
We measured bilirubin interference with the kinetic Jaffé method for serum creatinine. Both pooled sera with added bilirubin and icteric patients' sera were used and results with of which gave more nearly "true" values.
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Some cepha antibiotics interfere positively in the Jaffé method for determining creatinine. The extent of this interference differs with the modification used, and its mechanism is unknown. We studied the spectrophotometric and thermodynamic properties of the reaction of picrate with creatinine and two cepha antibiotics, cefoxitin and cephalothin. The absorbance spectra of the chromophore produ...
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Bilirubin causes underestimation of serum creatinine in the Jaffé alkaline picrate assay. We report an approach for preventing bilirubin interference by pretreating serum samples with peroxidase and H2O2. The dissociation of bilirubin from albumin and its subsequent oxidation markedly reduces the bilirubin interference and enables accurate determination of creatinine concentrations by the Jaffé...
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The negative interference by bilirubin in the measurement of creatinine by the Jaffé procedure is well documented. We describe a procedure for the elimination of interfering bilirubin by oxidation to biliverdin through the addition of potassium ferricyanide before the alkaline picrate reagent. We detected no negative interference with the addition of as much as 600 mumol/L bilirubin. The proced...
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2326 CUNICAL CHEMISTRY, Vol.40,No. 12,1994 of serum specimens contaminated with heparin (from indwelling lines) into heparin-containing Vacutainer Tubes (Becton Dickinson, Rutherford, NJ), and (b) by adding heparin (final concentration, 25-SO kIUIL) to the diluent used on the Tosoh AIA1200. The results are shown in Table 1. Interference was judged to be eliminated if triplicates were no longer ...
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ژورنال
عنوان ژورنال: Photodiagnosis and Photodynamic Therapy
سال: 2010
ISSN: 1572-1000
DOI: 10.1016/j.pdpdt.2010.07.008