EBMcalc Medical Calculator

PERC Rule for the Assessment of Possible Pulmonary Embolism

The EBMcalc module PERC Rule for the Assessment of Possible Pulmonary Embolism is available in EBMcalc Complete Edition.

This calculator evaluates the following Clinical Criteria:

Age ≥50 years old
Heart rate ≥100 beats per minute
Arterial oxygen saturation less than 95%
Swelling of a single leg
Hemoptysis
History of recent surgery or trauma
History of venous thromboembolic disease: DVT or PE
Use of estrogen hormone

References

Kline JA, Mitchell AM, Kabrhel C, Richman PB, Courtney DM. Clinical criteria to prevent unnecessary diagnostic testing in emergency department patients with suspected pulmonary embolism. J Thromb Haemost. 2004 Aug;2(8):1247-55. PubMed ID: 15304025

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