Template:Wells Score

Wells Criteria & Score

Clinical Features	Points
Symptoms of DVT (leg swelling and pain with palpation)	3.0
PE as likely as or more likely than an alternative diagnosis	3.0
HR >100 bpm	1.5
Immobilization for >3 consecutive days or surgery in the previous 4 weeks	1.5
Previous DVT or PE	1.5
Hemoptysis	1.0
Malignancy (receiving treatment, treatment stopped within 6 mon, palliative care)	1.0

Two Tier Wells Criteria

• Score 0-4 = PE Unlikely (12.1% incidence of PE)
  • Check D-dimer
    • If D-dimer positive then obtain CTPA or V/Q scan
    • If D-dimer negative, no further workup needed (0.5% incidence of PE at 3 month follow up)
• Score >4 = PE Likely (37.1% incidence of PE)
  • Obtain CT Pulmonary Angiography or V/Q Scan