Assessing Chest Pain Using Point-of-Care High-Sensitivity Troponin I in the Emergency Department

During the study period all ED patients with chest pain will have an extra lithium heparin blood sample obtained for each troponin test ordered and collected in the ED (typically 2, but this may range from 1-3 troponin measures), which will be used for immediate hs-cTnI measurement by research personnel using an Abbott i-STAT POC device.