Troponin point of care tests have been found to have inferior sensitivity to laboratory based tests, when either the 10 CV or the 99th percentile of a healthy population is used as the cut-off. In a prospective study we evaluated a decreased cut-off in the detection of cardiac injury.
Schneider, H-G., Ablitt, P., & Taylor, J. (2013). Improved sensitivity of point of care troponin I values using reporting to below the 99th percentile of normals. Clinical Biochemistry, 46(12), 979 - 982. https://doi.org/10.1016/j.clinbiochem.2013.04.016