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Pulmonary Embolism Rule-Out Criteria
Aka: Pulmonary Embolism Rule-Out Criteria, PERC Rule
- Indications
- Evaluation of Pulmonary Embolism in patients clinically assessed as low risk
- Criteria: Assumes a low clinical suspicion for PE
- Age <50 years
- Heart Rate <100 bpm
- Oxygen Saturation >94%
- No unilateral Leg Swelling
- No Hemoptysis
- No surgery or trauma within 4 weeks
- No prior DVT or PE
- No hormone use
- Includes oral, transdermal and intravaginal Estrogens as well as some Progestins
- Interpretation
- Low clinical suspicion for PE and all criteria negative (see above)
- Reasonable to forego further testing for Pulmonary Embolism
- References
- Kline (2004) J Thromb Haemost 2(8): 1247-55