Patients with pulmonary embolism can be identified through risk factors like blood pressure, age and medical history. Those who run a low risk of death due to this factor can be treated as outpatients, according to a publication in the Archives of Internal Medicine. The condition is due to an abrupt blockage of an artery due to a blood clot, or when the pelvis becomes dislodged. In the US, this is a major health hazard. This is not fatal in the case of nonmassive PE, wherein a respiratory failure does not result because of this.
But there is however no criteria by which low risk PE can be identified, so clinical prediction is made use of to identify these patients. As many as 10 risk factors have been identified to diagnose these patients, they are chronic kidney disease, lung disease, cardiovascular disease, heart failure, a history of cancer, low systolic blood pressure, a high pulse rate, altered mental status, an age of over 70 years, and arterial blood with reduced oxygen saturation. Those who do not have these factors are considered low risk patients.