Dangerous blood clot

Range: 15‑0.6. The lower the better.

Pulmonary embolism (PE) and deep vein thrombosis (DVT) are terms for serious blockages of veins (blood clots). Patients who are very frail or sick, or who stay in the hospital for a long time after surgery are more likely to develop a clot in their legs, thighs, or pelvis. These clots can be deadly if they break off and travel to other body parts such as the lungs. Some patients may get clots even though doctors prescribe medications to prevent them. If a hospital has higher numbers of serious blood clots, doctors might not be taking enough preventative steps.