TIMI Risk Score (UA/NSTEMI) — free guideline decision tool
Estimate 14-day risk of death, MI or urgent revascularisation in UA/NSTEMI with the TIMI score.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Age ≥ 65 | No |
|---|---|
| ≥ 3 CAD risk factors | No |
| Known CAD (stenosis ≥ 50%) | No |
| Aspirin use in past 7 days | No |
| ≥ 2 anginal episodes in 24 h | No |
| ST deviation ≥ 0.5 mm | No |
| Elevated cardiac markers | No |
→TIMI0/7
- 14-day event risk：≈ 4.7% (death/MI/urgent revascularisation)
- Strategy：Lower risk — guideline-directed medical therapy, risk-guided.
| Age ≥ 65 | Yes (+1) |
|---|---|
| ≥ 3 CAD risk factors | Yes (+1) |
| Known CAD (stenosis ≥ 50%) | Yes (+1) |
| Aspirin use in past 7 days | Yes (+1) |
| ≥ 2 anginal episodes in 24 h | Yes (+1) |
| ST deviation ≥ 0.5 mm | Yes (+1) |
| Elevated cardiac markers | Yes (+1) |
→TIMI7/7
- 14-day event risk：≈ 40.9% (death/MI/urgent revascularisation)
- Strategy：[Pending update] Some thresholds, grades and management recommendations on this page that conflict with current guidelines or are unverified are temporarily hidden pending verification against the guideline text.
Common questions
What is TIMI Risk Score (UA/NSTEMI)?
Estimate 14-day risk of death, MI or urgent revascularisation in UA/NSTEMI with the TIMI score.
How is TIMI Risk Score (UA/NSTEMI) calculated? What is the core formula?
1 point each: age ≥ 65, ≥ 3 CAD risk factors, known CAD, aspirin in 7 days, ≥ 2 anginal episodes/24 h, ST deviation ≥ 0.5 mm, elevated markers. Award 1 point each for the seven UA/NSTEMI TIMI predictors (age, risk factors, known CAD, recent aspirin, recent angina, ST deviation, positive markers).
When is TIMI Risk Score (UA/NSTEMI) used?
Risk-stratify non-ST-elevation acute coronary syndromes.
How should TIMI Risk Score (UA/NSTEMI) results be interpreted?
Rising scores track higher 14-day death/MI/urgent revascularisation risk. [Pending update] Some thresholds, grades and management recommendations on this page that conflict with current guidelines or are unverified are temporarily hidden pending verification against the guideline text.
What are the key clinical points for TIMI Risk Score (UA/NSTEMI)?
Score 0–1 ~5%, 6–7 ~41% 14-day event risk. Use alongside troponin trend and clinical context.
What are the limits and cautions when using TIMI Risk Score (UA/NSTEMI)?
Derived in the enoxaparin era — integrate with contemporary troponin and GRACE. Does not grade STEMI reperfusion urgency (use TIMI STEMI / ECG pathways). Borderline scores need serial troponin and clinical context. For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Does TIMI Risk Score (UA/NSTEMI) upload patient data? Where is it calculated?
Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
How is TIMI Risk Score (UA/NSTEMI) calculated in practice? Can you show a worked example?
Inputs: Age ≥ 65 No, ≥ 3 CAD risk factors No, Known CAD (stenosis ≥ 50%) No, Aspirin use in past 7 days No, ≥ 2 anginal episodes in 24 h No, ST deviation ≥ 0.5 mm No, Elevated cardiac markers No → Result: TIMI 0 /7（14-day event risk: ≈ 4.7% (death/MI/urgent revascularisation), Strategy: Lower risk — guideline-directed medical therapy, risk-guided.） Inputs: Age ≥ 65 Yes (+1), ≥ 3 CAD risk factors Yes (+1), Known CAD (stenosis ≥ 50%) Yes (+1), Aspirin use in past 7 days Yes (+1), ≥ 2 anginal episodes in 24 h Yes (+1), ST deviation ≥ 0.5 mm Yes (+1), Elevated cardiac markers Yes (+1) → Result: TIMI 7 /7（14-day event risk: ≈ 40.9% (death/MI/urgent revascularisation), Strategy: [Pending update] Some thresholds, grades and management recommendations on this page that conflict with current guidelines or are unverified are temporarily hidden pending verification against the guideline text.）
Run TIMI Risk Score (UA/NSTEMI) now
Estimate 14-day risk of death, MI or urgent revascularisation in UA/NSTEMI with the TIMI score.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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