Pulmonary Embolism Pathway (Wells-PE + D-dimer) — free guideline decision tool
Work up suspected pulmonary embolism with the two-tier Wells score and an age-adjusted D-dimer, and get the guideline next step. Instant, browser-side.
Open guideline tool →Guideline-based
Implements the decision logic from published clinical guidelines.
Runs in your browser
No installation. Enter the patient's values and get a guideline recommendation instantly.
Data stays local
Nothing is uploaded. Results are for licensed clinicians only.
Common questions
What is Pulmonary Embolism Pathway (Wells-PE + D-dimer)?
Work up suspected pulmonary embolism with the two-tier Wells score and an age-adjusted D-dimer, and get the guideline next step. Instant, browser-side.
How is Pulmonary Embolism Pathway (Wells-PE + D-dimer) calculated? What is the core formula?
Wells-PE (DVT signs 3, PE most likely 3, HR > 100 1.5, immobilisation/surgery 1.5, prior VTE 1.5, haemoptysis 1, malignancy 1); > 4 = PE likely. Age-adjusted D-dimer cut-off = age × 10 µg/L FEU for age > 50.
When is Pulmonary Embolism Pathway (Wells-PE + D-dimer) used?
Decide whether to exclude PE, order a D-dimer, or proceed to CTPA in a haemodynamically stable patient.
What are the key clinical points for Pulmonary Embolism Pathway (Wells-PE + D-dimer)?
PE likely (> 4) → CTPA directly; a negative D-dimer does not exclude PE here. PE unlikely (≤ 4) → D-dimer below the (age-adjusted) cut-off excludes PE without imaging. The age-adjusted cut-off applies only to patients > 50 with low clinical probability. Haemodynamically unstable patients are treated as high-risk PE and do not follow this pathway.
What are the limits and cautions when using Pulmonary Embolism Pathway (Wells-PE + D-dimer)?
For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
Run Pulmonary Embolism Pathway (Wells-PE + D-dimer) now
Work up suspected pulmonary embolism with the two-tier Wells score and an age-adjusted D-dimer, and get the guideline next step. Instant, browser-side.
Open guideline tool →For licensed clinicians. Not a substitute for clinical judgement.
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