Clinical chemistry
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Comparative Study
Determination of 19 cardiac troponin I and T assay 99th percentile values from a common presumably healthy population.
Between-assay comparability of 99th percentiles for cardiac troponin concentrations has not been assessed systematically in a single population for a large number of assays. ⋯ Among cardiac troponin assays 99th percentile concentrations appear to differ. High-sensitivity assays provide measurable cardiac troponin results in a substantially greater fraction of presumably healthy individuals.