Table 2: The main clinical scoring models for predicting the pre-test probability of pulmonary embolism. Well’s score, revised Geneva and simplified revised Geneva are scoring systems for assessment of suspected PE [24–26].

Well’s Score Revised and simplified revised Geneva scores Clinical characteristics Score Clinical characteristics Revised score Simplified score Haemoptysis +1 Age >65 years +1 +1 Cancer +1 Active malignant condition +2 +1 Previous pulmonary embolism or deep venous thrombosis +1.5 Surgery or fracture within 1 month +2 +1 Haemoptysis +2 +1 Heart rate >100/min +1.5 Previous deep vein thrombosis or pulmonary embolism +3 +1 Recent surgery or immobilisation +1.5 Clinical signs of deep venous thrombosis +3 Unilateral lower-limb pain +3 +1 Heart rate 75–94/min +3 +1 Alternative diagnosis less likely than that of pulmonary embolism +3 Pain on lower-limp deep venous palpation and unilateral oedema +4 +1 Heart rate >94/min +5 +1 Clinical probability Clinical probability Low <2 Low 0–3 0-1 Intermediate 2–6 Intermediate 4–10 2–4 High >6 High >10 ≥5