Step 1 — Clinical Status
Where is this patient?
Select the current clinical phase
🔍 Suspected PE
Symptoms suspicious for acute PE — needs diagnostic workup (Wells, YEARS, D-dimer, CTPA)
✅ Confirmed PE
PE confirmed on imaging (CTPA, V/Q, angiography) — needs risk stratification and treatment
Step 2 — Diagnostic Pathway (AHA/ACC 2026 Fig. 3)
Wells Score & YEARS Algorithm
Quantify pre-test probability, then apply YEARS criteria with D-dimer
Wells Score for PE
Wells Score0
YEARS Criteria
D-Dimer (ng/mL FEU)
Step 2 — AHA/ACC PE Clinical Category (Fig. 2)
Classify the PE
Select the category that best matches the patient's hemodynamic and clinical status
A
Subclinical
Incidental, asymptomatic
B
Symptomatic
Low clinical severity
C
Symptomatic
Elevated severity
D
Incipient
Cardiopulmonary failure