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1,329 calculators and references across 60 specialties, with formula confidence shown up front.

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TIMI Risk Score for STEMI Calculator

Explanation - TIMI Risk Score for STEMI: Comprehensive Overview The TIMI Risk Score for STEMI (Thrombolysis In Myocardial Infarction) is a clinical tool used to estimate short-term (30-day) mortality in patients with ST-elevation myocardial infarction. It was developed by Morrow et al. (Circulation, 2000) using data from the InTIME-II trial, aiming to simplify bedside risk assessment at patient presentation. Each cli

Formula reviewed

TIMI Risk Score for UA/NSTEMI Calculator

TIMI Risk Score for UA/NSTEMI: Comprehensive Explanation and Clinical Context The TIMI (Thrombolysis In Myocardial Infarction) Risk Score is a validated tool used to predict the likelihood of adverse cardiovascular outcomes (death, myocardial infarction, or urgent revascularization) within 14 days in patients with Unstable Angina (UA) or Non ST-Elevation Myocardial Infarction (NSTEMI). It consists of seven clinical p

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Urgent Angiography Indication Assessment Tool in NSTE ACS

Explanation and Clinical Context This tool is designed for patients with non ST segment elevation acute coronary syndrome and helps clinicians identify situations in which an immediate invasive strategy with urgent coronary angiography is appropriate. The 2025 American guideline on acute coronary syndromes states that patients with NSTE ACS who have refractory angina or hemodynamic or electrical instability should un

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Zwolle Risk Score (Post-PCI) Calculator

Zwolle Risk Score (Post-PCI): Comprehensive Explanation and Clinical Context The Zwolle Risk Score was developed to predict 30-day mortality and assess early discharge eligibility for STEMI patients after primary PCI. It incorporates six clinical and angiographic variables easily obtainable post-procedure: age, Killip class, TIMI flow, three-vessel disease, anterior infarction, and ischemic time. Clinical Significanc