Standardized clinical prediction rule for estimating pretest probability of pulmonary embolism
INSTRUCTIONS
Use this calculator to estimate pulmonary embolism pretest probability using 8 standardized clinical variables.
Apply the result to support diagnostic testing pathways together with D-dimer testing and imaging strategy.
Age >65 years*
Previous DVT or PE*
Surgery (under general anesthesia) or lower limb fracture in past month*
Active malignant condition*
Unilateral lower limb pain*
Hemoptysis*
Heart rate*
<750
75-94+3
≥95+5
Pain on lower limb palpation and unilateral edema*
