Objective: To determine whether copeptin-us can rule out diagnosis of non-ST-segment elevation myocardial infarction (NSTEMI) without prolonged monitoring and serial blood sampling in patients with high-sensitive cardiac troponin I (hs-cTnI) below the 99th centile at presentation to the emergency department (ED) [corrected].
Design: Prospective, non-randomised, individual blinded diagnostic accuracy study.
Setting: Two EDs of a rural region of France.