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PE Clinical Calculator

YEARS Algorithm + 2026 AHA/ACC Risk Stratification

⚠ Clinical Disclaimer

Anatomy does not define early risk. RV/LV ratio measurement is required for accurate risk stratification. This tool is based on the AHA/ACC 2026 PE Guidelines and is intended to support, not replace, clinical judgment.

Section 1 — YEARS Algorithm Screening

Patient Age (years)

D-Dimer Level (ng/mL)

YEARS Clinical Criteria (check all that apply):

Clinical signs of DVTLeg swelling, tenderness, erythemaHemoptysisBlood-streaked sputumPE is the most likely diagnosisClinical gestalt — provider's assessment

Section 2 — 2026 AHA/ACC Risk Stratification

Hemodynamic Stability

RV/LV Ratio (CTPA or Echocardiography)

RV/LV ratio ≥ 0.9 indicates RV dysfunction. Leave blank if not yet measured.

Positive BiomarkersElevated Troponin (I or T) and/or elevated BNP/NT-proBNP