There is no need to apply the PERC rule to those patients who are not being evaluated for PE. If the patient is considered low-risk, PERC may help avoid further testing. If the patient is moderate or high …

This PERC rule calculator is used to rule out patients that are already deemed to have a low risk of pulmonary embolism to allow searching a different diagnosis.

In patients with a low probability of PE who fullfil all eight criteria, the likelihood of PE is low and no further testing is required. All other patients should be considered for further testing with sensitive D …

The PERC (Pulmonary Embolism Rule-out Criteria) rule can be used in the initial evaluation for pulmonary embolism (PE) in low-risk patients to exclude the diagnosis of PE based on historical and …

Jul 28, 2025 · Use PERC only if you’re already thinking “this patient probably doesn’t have a PE,” or if Wells determines your patient to be low risk. Applying PERC in someone at moderate or high risk …

The PERC rule reveals patients who are at low risk of pulmonary embolism in an accurate and rapid manner so differential diagnosis can be initiated. It is most often used in the assessment of patients …

To determine the diagnostic performance of pulmonary embolism rule-out criteria (PERC), to rule out pulmonary embolism, without the need for D-dimer testing, in the emergency department.

May 29, 2012 · We included all original research studies conducted in emergency departments on diagnostic performance of PERC. Two reviewers independently identified the eligible studies and …

PERC deals with certain labor relations issues involving public employers, public employees, and unions that represent public employees, including representation issues, unfair practices, the scope of …

The Altitude-adjusted PERC Rule for Pulmonary Embolism rules out PE if no criteria are present; includes SaO₂ adjustment for altitude.