PE's .... How do we know?

I ran across this post on Jerwin's ER about PE role out criteria. Although these criteria may not make it as standard here in the US. I thought it was applicable to orthopaedic surgeons.

The main goal of Pulmonary Embolism Rule-out Criteria (PERC) is to minimize unnecessary testing in PE, which is another way of saying, to prevent unnecessary ordering of D-dimer.

Please be aware that most of our guidelines for the prophylaxis and treatment of DVT and PE's comes from the American Academy of Chest Surgeons.