Table 1 Wells criteria for clinical probability assessment of pulmonary embolism
Wells criteria/points | Our patient |
|---|---|
Clinical signs and symptoms of DVT = 3 | 3 |
An alternative diagnosis is less likely than PE = 3 | 3 |
Heart rate more than 100 = 1.5 | 1.5 |
Immobilization for 3 or more consecutive days or surgery in the previous 4 weeks = 1.5 | 0 |
Previous objectively diagnosed PE or DVT = 1.5 | 0 |
Hemoptysis = 1 | 1 |
Malignancy (on treatment, treatment in last 6 months, or palliative) = 1 | 0 |
Total | 8.5 |
Traditional clinical probability assessment (Wells criteria) | |
0–1 = low risk 2–6 = moderate risk > 6 = high risk | High risk |
Simplified clinical probability assessment (Modified Wells criteria) | |
PE likely = > 4.0 PE unlikely = ≤ 4.0 | PE likely |