Use the PERC rule to rule out PE if no criteria are present and pre-test probability is <15%.
The PERC rule is used to rule out pulmonary embolism in those patients where the clinical gestalt is that they are low risk (ie <15% risk of pulmonary embolism).
Pulmonary embolism can be ruled out if none of the following features are identified:
In patients with a low pre-test probability of PE who meet any of these criteria, further testing could be considered to more definitely rule out pulmonary embolism.
Kline JA et al.
The PERC rule is used to rule out pulmonary embolism in those patients where the clinical gestalt is that they are low risk (ie <15% risk of pulmonary embolism).
Pulmonary embolism can be ruled out if none of the following features are identified:
In patients with a low pre-test probability of PE who meet any of these criteria, further testing could be considered to more definitely rule out pulmonary embolism.
Kline JA et al.
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