The ACTION ICU score sums 9 admission predictors in initially haemodynamically stable NSTEMI.

Predictor	Criterion	Points
Age	≥70 years	+1
Creatinine	≥1.1 mg/dL	+1
Initial heart rate	85-99 bpm	+1
Initial heart rate	≥100 bpm	+3
Initial systolic blood pressure	125-145 mmHg	+1
Initial systolic blood pressure	<125 mmHg	+3
Initial troponin	≥12 × local upper limit of normal	+2
Heart failure	Signs or symptoms on admission	+5
ECG	ST-segment depression	+1
Prior coronary revascularisation	No prior PCI or CABG	+1
Chronic lung disease	Present	+2

Total possible score: 0-19 points.

ACTION ICU Score for Intensive Care in NSTEMI