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Use of Cystatin C to Assess Kidney Function



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PETIA Cystatin C Reference Range

Slide 21

August 2011

Currently, our reference ranges for infants and children up to 17 years of age are based on literature values, as shown on the slide. The adult values were obtained from the reference range study shown the previous slide. Our current 95% reference range is 0.488 to 1.134 mg/L, with a mean of 0.71 mg/L. There were no gender differences apparent in our study. However, we are currently evaluating additional samples to determine if the reference range should be slightly higher for those greater than 50 years of age. Of note, other large epidemiological studies have suggested that cystatin C levels do increase in older individuals.

PETIA Cystatin C Reference Range

 


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