A positive rapid troponin I assay drawn during an episode of ACS is a reliable predictor
of an adverse short-term, 30-day outcome, specifically death or MI. However, a negative
rapid troponin I assay does not reliably indicate an absence of myocardial damage and predicts
neither event-free short-term nor low-risk status of subsequent cardiac events. The event rate
for patients with a negative rapid troponin I assay was 5.9% (132/2245 patients).
Prognostic implications of elevated troponin I in acute coronary syndrome.
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