Role of first-drawn indeterminate troponin-I levels in the Emergency Department

For Emergency Department (ED) patients presenting with acute chest pain, troponin-I (TnI) is reported not just as negative or positive, but also within an "indeterminate range". We reviewed 150 patients with a first-drawn ED TnI level in the indeterminate range (0.08-0.79 ng/dL) and compared outcomes to 150 control patients with a negative TnI. An initial ED indeterminate TnI yielded a statistically significant association with a composite …