Cardiology · Emergency Medicine
TIMI Risk Index calculator
Enter the published formula inputs below to calculate and interpret this score.
Clinical inputs
Allowed range: 20–250 /min
Allowed range: 18–120 years
Allowed range: 40–300 mmHg
Result
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Clinical inputs
- Heart rate bpm (/min)Accepted range: 20 to 250
- Age (years)Accepted range: 18 to 120
- Systolic blood pressure mmHgAccepted range: 40 to 300
Primary source
Morrow DA et al. A simple risk index for rapid initial triage of patients with ST-elevation myocardial infarction: an InTIME II substudy. Lancet. 2001;358:1571-1575. DOI: 10.1016/S0140-6736(01)06649-1. PMID: 11716882. Scope: TIMI risk index = [heart rate × (age/10)²] / systolic BP; risk groups are the Morrow quintiles (≤12.5, >12.5-17.5, >17.5-22.5, >22.5-30, >30) as restated in Circulation 2003 (DOI: 10.1161/01.CIR.0000049743.45748.02). (2001)
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