Diagnostic Strategy for Suspected Pulmonary Embolism Based on 4PEPS

"Physicians of the participating centers in the intervention group will have the recommendation to apply the 4PEPS strategy. Using 12 variables, 4PEPS defines four levels of CP that rule out a PE, namely~1. based only on clinical data (very low CP: PEPS \< 0),~2. based on a D-dimer level \< 1000 μg/L (low CP: PEPS ≥ 0 and \< 5),~3. based on a D-dimer level with an age-adjusted cut-off value (moderate CP: PEPS ≥ 5 and \<12), or~4. the diagnosis cannot reliably be ruled out based on a D-dimer test (high CP: PEPS ≥ 12)"