Work out wells score for pe instantly with clear inputs, formula shown and shareable results.
Applies the weighted Wells criteria for pulmonary embolism, where the two clinical judgement items score three points each.
Wells PE
3 points each for DVT signs and PE being the most likely diagnosis; 1.5 each for tachycardia, recent immobilisation or surgery and previous VTE; 1 each for haemoptysis and malignancy
Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
More than 4 points means PE likely; 4 or fewer means unlikely and suitable for D-dimer testing.
PERC is used to avoid testing altogether in very low risk patients, whereas Wells decides between D-dimer and imaging.