What is the TIMI Risk Score?

Thrombolysis In Myocardial Infarction score predicts risk of death, MI, or urgent revascularization at 14 days in UA/NSTEMI patients.

How do I interpret TIMI?

Score 0-1: ~5% risk, Score 2: ~8%, Score 3: ~13%, Score 4: ~20%, Score 5: ~26%, Score 6-7: ~41%. Higher scores warrant more aggressive management.

What's different from HEART score?

TIMI is for confirmed UA/NSTEMI. HEART is for undifferentiated chest pain. TIMI uses known CAD stenosis ≥50%, HEART uses risk factors.

Should low TIMI patients still get anticoagulation?

Yes, all UA/NSTEMI patients should receive anticoagulation per guidelines regardless of TIMI. The score helps determine invasive vs conservative strategy timing.

Does TIMI apply to STEMI?

No, this is TIMI for UA/NSTEMI. There's a separate TIMI score for STEMI with different variables and outcomes.

TIMI Risk Score

Risk of death/MI/revascularization in UA/NSTEMI.

TIMI Criteria

TIMI Score

0 / 7

14-day Event Risk: 4.7%

Low-Intermediate

Conservative strategy may be appropriate.

Risk by Score

4.7%

8.3%

13.2%

19.9%

26.2%

40.9%

Frequently Asked Questions

How to Use

About the TIMI Calculator

What it calculates

Calculates TIMI risk score for unstable angina and NSTEMI to estimate 14-day adverse cardiac event risk.

When to use it

Use in chest pain evaluation to stratify risk and guide admission vs. early discharge decisions.

Example

A TIMI score of 0-2 indicates low risk; scores ≥5 suggest high risk of death or MI within 14 days.

Explore More

TIMI Risk Score

TIMI Criteria

0 / 7

Low-Intermediate

Risk by Score

About the TIMI Calculator

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