How rapid is rapid? Exemplary results of real-life rapid rule-out troponin timing in troponin-positive acute coronary syndromes without persistent ST-segment elevation in two contrasting German chest pain unit facilities

Table 2 Percentage of cTn result announcement in time of baseline measurement and first and second control

Percentage of cTN in time^a	Overall (%)	Site I (%)	Site II (%)	p value
Moment of cTn measurement
Baseline	86.9	94.0	78.9	<0.01*
1st control	59.4	61.9	57.4	0.93
2nd control	41.1	52.6	35.1	0.74

site I centre of maximum care in an urban university setting (University Hospital Münster); site II centre of primary care in a rural regional setting (Arnsberg Medical Center)
^adefined as admission till announcement of baseline results: <60 min (45–60 min laboratory turn-around time); admission till announcement of results of the 1st control: <4 h (control after 3 h + 1 h laboratory turn-around time); admission till announcement of results of the 2nd control: <13 h (control after 6–12 h + 1 h laboratory turn-around time); cTn cardiac troponin
* Statistically significant

ISSN: 2047-783X