 This study is a 1-month pilot cohort study of troponin screening in 4 Ontario intensive care units. The objective of this pilot study is to evaluate the ability to perform a larger study, which will determine the prevalence, incidence and risk factors for elevated troponin values, how patients with elevated troponin values are treated as a baseline, and the incidence of myocardial infarction in critically ill patients. Knowing the prognostic impact of these conditions and understanding current management will thereafter guide researchers and clinicians on the importance of carefully evaluating potential risk-modifying therapies. 