Cardiology Calculators
32 calculators.
Age-Adjusted D-dimer Cutoff for Pulmonary EmbolismIn patients older than 50 with non-high (or "PE unlikely") clinical probability, the…ASCVD 10-Year Risk (2013 Pooled Cohort Equations)The 2013 ACC/AHA Pooled Cohort Equations estimate 10-year risk of a first hard ASCVD…ATRIA Bleeding Risk ScoreATRIA predicts major hemorrhage on warfarin in atrial fibrillation (0–10 points): anemia…Calculated LDL Cholesterol (Friedewald and Sampson/NIH)Friedewald LDL-C = total cholesterol − HDL − triglycerides/5 (mg/dL); invalid when…Cardiac Output by the Fick PrincipleFick cardiac output = O₂ consumption ÷ arteriovenous O₂ content difference, where O₂…CHA₂DS₂-VASc Score for Atrial Fibrillation Stroke RiskCHA₂DS₂-VASc estimates annual stroke risk in non-valvular atrial fibrillation (0–9…CHADS-65 Algorithm (Canadian Cardiovascular Society) for AF AnticoagulationThe CCS "CHADS-65" algorithm recommends oral anticoagulation for AF if age ≥65 or any…CHADS₂ Score for Atrial Fibrillation Stroke RiskCHADS₂ estimates annual stroke risk in non-valvular atrial fibrillation (0–6 points):…Corrected QT Interval (QTc)Corrects the QT interval for heart rate. Bazett: QT/√RR (primary); Fridericia: QT/∛RR;…Duke Treadmill ScoreDuke Treadmill Score = exercise time (min, Bruce) − 5 × maximal ST deviation (mm) − 4 ×…EDACS (Emergency Department Assessment of Chest Pain Score)EDACS scores possible cardiac chest pain from age, sex, risk factors and pain features.…Framingham Risk Score (ATP III, 10-Year Hard CHD)The ATP III Framingham equation estimates 10-year risk of hard coronary heart disease…GRACE Score for In-Hospital Mortality in ACSThe GRACE score (Granger 2003) estimates in-hospital mortality across the ACS spectrum…H₂FPEF Score for HFpEF ProbabilityH₂FPEF (0–9) estimates the probability of heart failure with preserved ejection fraction…HAS-BLED Score for Major Bleeding Risk in Atrial FibrillationHAS-BLED estimates 1-year major bleeding risk in atrial fibrillation patients on…HEART Score for Major Cardiac Events in Chest PainThe HEART score (0–10) risk-stratifies emergency department chest pain for 6-week major…HEMORR₂HAGES Bleeding Risk ScoreHEMORR₂HAGES estimates bleeding risk on warfarin in elderly AF patients (0–12): 2 points…Hestia Criteria for Outpatient Pulmonary Embolism TreatmentHestia is an 11-item checklist for confirmed acute PE: if all answers are "no", the…Mean Arterial Pressure (MAP)Mean arterial pressure ≈ (SBP + 2 × DBP) ÷ 3, i.e. diastolic plus one-third of pulse…Non-HDL CholesterolNon-HDL cholesterol = total cholesterol − HDL cholesterol; it captures all atherogenic…ORBIT Bleeding Risk Score for Atrial FibrillationThe ORBIT score (0–7) predicts major bleeding in AF patients on anticoagulation: 0–2 low…PERC Rule for Pulmonary EmbolismThe PERC rule rules out PE without testing when pretest probability is low (<15%) and…Pulmonary Embolism Severity Index (PESI)PESI predicts 30-day mortality in acute PE from 11 clinical variables. Class I (≤65) and…Revised Geneva Score for Pulmonary EmbolismThe revised Geneva score (0–25) estimates clinical probability of PE from objective…Sgarbossa Criteria (Original and Smith-Modified) for MI in LBBBSgarbossa criteria identify acute MI in left bundle branch block. Original (1996):…Shock IndexShock index is heart rate divided by systolic blood pressure. Normal is about 0.5–0.7;…Simplified Pulmonary Embolism Severity Index (sPESI)sPESI scores 1 point each for age >80, cancer, chronic cardiopulmonary disease, HR ≥110,…TIMI Risk Score for STEMIThe TIMI STEMI score (0–14) estimates 30-day mortality after ST-elevation MI, from 0.8%…TIMI Risk Score for UA/NSTEMIThe TIMI score for unstable angina/NSTEMI (0–7) predicts 14-day all-cause death,…Wells Score for Deep Vein ThrombosisThe modified Wells DVT score (−2 to 9) estimates pretest probability of lower-limb deep…Wells Score for Pulmonary EmbolismThe Wells PE score (0–12.5) estimates pretest probability of pulmonary embolism.…YEARS Algorithm for Pulmonary EmbolismYEARS rules out PE without imaging when there are no YEARS items (clinical signs of DVT,…