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Use of Cystatin C to Assess Kidney Function


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Comparison To Current Nephelometric Assay (PENIA) Reveals 23% Bias

Slide 16

August 2011

Previously, the Mayo Clinic renal laboratory used a nephelometric assay for cystatin C. When samples were recently run using both platforms, we found that there was a 23% bias, with the newer PETIA assay being higher than the previous nepholmetric assay or PENIA.

Comparison To Current Assay Reveals Bias


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