Skip to content
Internal Medicine · Emergency Medicine · Chest Diseases

Wells score for PE

How likely a pulmonary embolism is before any test.

0 of 12.5Low probabilityLow probability. A negative D-dimer can rule PE out. Two-level rule: PE unlikely (4 or less).

Wells PS et al. Derivation of a simple clinical model to categorize patients' probability of pulmonary embolism. Thromb Haemost, 2000;83:416-420. A guide for your judgement, not a replacement for it.