Total the Wells criteria items for suspected pulmonary embolism and read the two-tier or three-tier probability band together with the suggested next diagnostic step.
需结合 D-二聚体或影像学检查。
| Item | Formula / Note | Source / Standard |
|---|---|---|
| Scoring items | the pulmonary embolism score covers signs heart rate immobilisation surgery and haemoptysis | Wells et al. 2000, Thromb Haemost |
| Stratification | low probability combines with D-dimer while high probability proceeds to imaging | ESC 2019, pulmonary embolism guidelines |
| Subjective items | some items rely on assessor judgement with lower agreement than objective ones | ESC 2019, pulmonary embolism guidelines |