Prevalence Of Pulmonary Embolism In Patients With HEmoptysis (POPEIHE)

"The diagnosis of pulmonary embolism will be made using the diagnostic algorithm suggested by the 2019 European guidelines . The pre-test clinical probability of pulmonary embolism will be defined based on the simplified Wells score. In patients with a low pre-test clinical probability and a D-dimer level below the threshold value the diagnosis of pulmonary embolism will be excluded. The D-dimer level will be measured using the quantitative assay routinely used in each participating center; the threshold value for a positive result compared to a negative result is 500 μg per milliliter for patients under 50 years of age. For each additional decade of age, the exclusion cutoff will increase by 100 μg per milliliter.~The criterion for the presence of pulmonary embolism is the detection of an intraluminal filling defect on CT."