Wells score (PE)

• Clinical signs and symptoms of DVT+3
• An alternative diagnosis is less likely than PE+3
• Heart rate > 100 /min+1.5
• Immobilisation ≥ 3 days or surgery in the previous 4 weeks+1.5
• Previous DVT or PE+1.5
• Haemoptysis+1
• Malignancy (on treatment, treated in last 6 months, or palliative)+1

Source: NICE NG158 — Venous thromboembolic diseases

For healthcare professionals, as an aid to clinical judgement — not a substitute for it. Follow your local policy and ask a senior when in doubt.